Products

Suppliers
Filter Gallery
8,928

Pipe Half Coupling

Products
Fittings Pipe Fittings Stainless Steel Pipe Fittings Pressure Pipe Pressure Tube Coupling

Sorry! No matches were found.

Factory-Derect-Sale Leak-Proof High Strength Carbon/Stainless Steel A105n/Ss 304/316 Pipe Connector Female Thread Screw Full/Half Coupling for Plumbing, HVAC

Factory-Derect-Sale Leak-Proof High Strength Carbon/Stainless Steel A105n/Ss 304/316 Pipe Connector Female Thread Screw Full/Half Coupling for Plumbing, HVAC

US $ 0.31-99 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Pipe Fitting, Flange
Contact Supplier
Audited Supplier
Yancheng Jicheng Machinery Co., Ltd

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2024
Chat Now Send Inquiry
A105 Half/Full Pipe Fitting Coupling Threaded

A105 Half/Full Pipe Fitting Coupling Threaded

US $ 0.2-3 / Piece FOB
1,000 Pieces (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier
Wenzhou Long'an Flange Co., Ltd.

Manufacturer/Factory & Trading Company

Zhejiang, China Since 2025
Chat Now Send Inquiry
Zcsl-Suskk Custom 304 Stainless Steel Threaded Half Coupling Weld on Pipe Tube Bung Fitting for Home Brewing Automotive

Zcsl-Suskk Custom 304 Stainless Steel Threaded Half Coupling Weld on Pipe Tube Bung Fitting for Home Brewing Automotive

US $ 0.1-0.5 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Spring Plunger, Ball Plunger, Indexing Plunger, Ball Lock Pin, Ball Transfer Unit, Screw, Nut, Washer, Captive Screw, Dowel Pin
Contact Supplier
Audited Supplier
Dongguan Zhengchen Hardware Co., Ltd.

Guangdong, China Since 2020
Chat Now Send Inquiry
CNC Turning Threaded Full/Half Coupling Fitting 1/8-4inch Disinfecting Water Pipe Fittings Steam Manufacturing Pipe Fittings

CNC Turning Threaded Full/Half Coupling Fitting 1/8-4inch Disinfecting Water Pipe Fittings Steam Manufacturing Pipe Fittings

US $ 2.2-2.5 / Piece FOB
1,000 Pieces (MOQ)
More
Material : Alloy Steel
Contact Supplier
Audited Supplier
Ningbo Suijin Machinery Technology Co., Ltd.

Zhejiang, China Since 2022
Chat Now Send Inquiry
Forged Stainless Steel Pipe Fitting Half Couplings

Forged Stainless Steel Pipe Fitting Half Couplings

US $ 0.35-15.9 / Piece FOB
1 Piece (MOQ)
More
Main Products: Pipe Fitting, Elbow, Tees, Union, Hex Head Bushing, Hex Head Plug, Welding-Outlet, Pipe Elbow, Threaded Fitting, Crosses
Contact Supplier
Suzhou TLH Pipe Fittings Co., Ltd

Jiangsu, China Since 2025
Chat Now Send Inquiry
Forged 3000psi High Pressure Pipe Fitting 1/2" NPT Thread Half Coupling

Forged 3000psi High Pressure Pipe Fitting 1/2" NPT Thread Half Coupling

US $ 2 / Piece FOB
10 Pieces (MOQ)
More
End Connection : Coupling
Contact Supplier
Audited Supplier
Zhejiang Yuzheng Valve Technology Co., Ltd.

Manufacturer/Factory & Trading Company

Zhejiang, China Since 2014
Chat Now Send Inquiry
China-Factory-Price-High-Quality En10241 Black Cold-Galvanized Hot-Dipped-Galvanized Sch40/Sch80/Sch160 Wrought-Steel-Pipe-Fittings Half/Full Couplings

China-Factory-Price-High-Quality En10241 Black Cold-Galvanized Hot-Dipped-Galvanized Sch40/Sch80/Sch160 Wrought-Steel-Pipe-Fittings Half/Full Couplings

US $ 2,100-2,300 / Ton FOB
1 Ton (MOQ)
More
Main Products: Malleable Iron Pipe Fittings, Grooved Fittings, Butt Weld Pipe Fittings, Forged Steel Flanges, Forged Steel Fittings, Stainless Steel Valves & Fittings, Brass Valves & Fittings, Ductile Iron Valves & Fittings, HDPE Valves & Fittings, PVC Valves & Fittings
Contact Supplier
Audited Supplier
Hefei Lamat Piping Co., Ltd.

Anhui, China Since 2018
Chat Now Send Inquiry
Stainless Steel Screwed Pipe Fittings NPT BSPT Threaded Half Couplings

Stainless Steel Screwed Pipe Fittings NPT BSPT Threaded Half Couplings

US $ 0.1-0.3 / Piece FOB
100 Pieces (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier
Qingdao HQ Import & Export Co., Ltd.

Shandong, China Since 2013
Chat Now Send Inquiry
Carbon Steel Female & Male Threaded Half Pipe Coupling

Carbon Steel Female & Male Threaded Half Pipe Coupling

US $ 0.1 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Cap, Hat, BBQ Grill Pan, Stove, Stainless Steel Mug
Contact Supplier
Yiwu Reputable Trade Co., Ltd.

Trading Company

Zhejiang, China Since 2024
Chat Now Send Inquiry
NPT Carbon Steel Pipe Fittings Forged Socket Forged Half Coupling 3000 Lbs ASTM B16.11

NPT Carbon Steel Pipe Fittings Forged Socket Forged Half Coupling 3000 Lbs ASTM B16.11

US $ 1.3-1.5 / Piece FOB
100 Pieces (MOQ)
More
Thread Distribution : External Thread
Contact Supplier
Audited Supplier
Fluid Tech Piping Systems (Tianjin) Co., Ltd

Tianjin, China Since 2024
Chat Now Send Inquiry
A182 304L 3000# Female Stainless Steel Pipe Fittings Full/Half Coupling/Socket

A182 304L 3000# Female Stainless Steel Pipe Fittings Full/Half Coupling/Socket

US $ 0.2 / Piece FOB
1 Piece (MOQ)
More
Main Products: Pipe Elbow, Pipe Tee, Pipe Cap, Pipe Reducer, Pipe Bend
Contact Supplier
Audited Supplier
Hebei Shengtian Pipe-Fitting Group Co., Ltd.

Manufacturer/Factory & Trading Company

Hebei, China Since 2013
Chat Now Send Inquiry
ASME B16.11 Pipe Connectors Carbon Steel High-Pressure Socket Welding Forged Half Coupling

ASME B16.11 Pipe Connectors Carbon Steel High-Pressure Socket Welding Forged Half Coupling

US $ 0.31-99 / Piece FOB
100 Pieces (MOQ)
More
Material : Carbon Steel
Contact Supplier
Audited Supplier
Yancheng Jicheng Machinery Co., Ltd

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2024
Chat Now Send Inquiry
Related Searches
Steel Coupling Pipe Coupling Stainless Steel Coupling Wholesale Pipe Half Coupling Pipe Fitting And Coupling Steel Pipe Couplings
Scaffolding Coupling Combination & Joint Fittings Shaft Coupling Elbow Nipple
Coupler Scaffolding Frame Scaffolding Cuplock Scaffolding Suspended Scaffolding Mobile Scaffolding Attached Scaffolding
Hot Forged Steel Half Couplings for Pipe Fitting

Hot Forged Steel Half Couplings for Pipe Fitting

US $ 0.1 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Investment Casting, Precision Casting, Steel Casting China, Sand Casting, Lost Wax Casting, Lost Foam Casting, Open Die Forging, Steel Forging, Excavator Buckets, Mini Excavator Buckets
Contact Supplier
Audited Supplier
Ningbo Yinzhou Nord Machinery Co., Ltd.

Zhejiang, China Since 2009
Chat Now Send Inquiry
ANSI B16.11 Forged Stainless Steel Pipe Fittings/Full Couplings/Half Couplings

ANSI B16.11 Forged Stainless Steel Pipe Fittings/Full Couplings/Half Couplings

US $ 0.3-99 / Piece FOB
3,000 Pieces (MOQ)
More
Structure : Vertical
Contact Supplier
Audited Supplier
Qingdao Fluido Industrial Co., Ltd.

Shandong, China Since 2012
Chat Now Send Inquiry
High Pressure Pipe Fittings Stainless Steel Threaded Full Coupling Threaded Half Couplings

High Pressure Pipe Fittings Stainless Steel Threaded Full Coupling Threaded Half Couplings

US $ 0.16 / Piece FOB
1,000 Pieces (MOQ)
More
Main Products: Ast Iron Stove Part
Contact Supplier
Audited Supplier
Qingdao Donrex Co., Ltd.

Manufacturer/Factory & Trading Company

Shandong, China Since 2011
Chat Now Send Inquiry
Stainless Steel Pipe Fittings Full Couplings Half Couplings

Stainless Steel Pipe Fittings Full Couplings Half Couplings

US $ 0.1-0.3 / Piece FOB
100 Pieces (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier
Qingdao HQ Import & Export Co., Ltd.

Shandong, China Since 2013
Chat Now Send Inquiry
ASME B16.11 High Pressure Forged Stainless Steel ASTM A182 F304 F304L Pipe Fittings Half Coupling

ASME B16.11 High Pressure Forged Stainless Steel ASTM A182 F304 F304L Pipe Fittings Half Coupling

US $ 0.35-15.9 / Piece FOB
1 Piece (MOQ)
More
Main Products: Pipe Fitting, Elbow, Tees, Union, Hex Head Bushing, Hex Head Plug, Welding-Outlet, Pipe Elbow, Threaded Fitting, Crosses
Contact Supplier
Suzhou TLH Pipe Fittings Co., Ltd

Jiangsu, China Since 2025
Chat Now Send Inquiry
NPT Carbon Steel Stainless Steel Pipe Fittings Forged High Pressure Half Coupling Socket Weld Class 3000/6000 Lbs ASTM B16.11

NPT Carbon Steel Stainless Steel Pipe Fittings Forged High Pressure Half Coupling Socket Weld Class 3000/6000 Lbs ASTM B16.11

US $ 0.35-15.9 / Piece FOB
1 Piece (MOQ)
More
Surface Treatment : Sand Blasted
Contact Supplier
Suzhou TLH Pipe Fittings Co., Ltd

Jiangsu, China Since 2025
Chat Now Send Inquiry
ANSI B16.11 Forged Pipe Fitting Carbon A105 Full/ Half Coupling BSPT/NPT

ANSI B16.11 Forged Pipe Fitting Carbon A105 Full/ Half Coupling BSPT/NPT

US $ 0.5 / Piece FOB
1 Piece (MOQ)
More
Main Products: Pipe Elbow, Pipe Tee, Pipe Cap, Pipe Reducer, Pipe Bend
Contact Supplier
Audited Supplier
Hebei Shengtian Pipe-Fitting Group Co., Ltd.

Manufacturer/Factory & Trading Company

Hebei, China Since 2013
Chat Now Send Inquiry
Wholesale Price for Water Gas Sale Products A105 Forged Steel Pipe Forged Socket NPT 3000lb Half Coupling NPT Female Coupling

Wholesale Price for Water Gas Sale Products A105 Forged Steel Pipe Forged Socket NPT 3000lb Half Coupling NPT Female Coupling

US $ 0.35-15.9 / Piece FOB
1 Piece (MOQ)
More
Machining Method : Casting
Contact Supplier
Suzhou TLH Pipe Fittings Co., Ltd

Jiangsu, China Since 2025
Chat Now Send Inquiry
Related Videos
  • What is Factory-Derect-Sale Leak-Proof High Strength Carbon/Stainless Steel A105n/Ss 304/316 Pipe Connector Female Thread Screw Full/Half Coupling for Plumbing, HVAC
    What is Factory-Derect-Sale Leak-Proof High Strength Carbon/Stainless Steel A105n/Ss 304/316 Pipe Connector Female Thread Screw Full/Half Coupling for Plumbing, HVAC
    US $ 0.31-99 /Piece
    100 Pieces (MOQ)
    Contact Supplier
  • What is A105 Half/Full Pipe Fitting Coupling Threaded
    What is A105 Half/Full Pipe Fitting Coupling Threaded
    US $ 0.2-3 /Piece
    1,000 Pieces (MOQ)
    Contact Supplier
  • What is CNC Turning Threaded Full/Half Coupling Fitting 1/8-4inch Disinfecting Water Pipe Fittings Steam Manufacturing Pipe Fittings
    What is CNC Turning Threaded Full/Half Coupling Fitting 1/8-4inch Disinfecting Water Pipe Fittings Steam Manufacturing Pipe Fittings
    US $ 2.2-2.5 /Piece
    1,000 Pieces (MOQ)
    Contact Supplier
  • What is Forged Stainless Steel Pipe Fitting Half Couplings
    What is Forged Stainless Steel Pipe Fitting Half Couplings
    US $ 0.35-15.9 /Piece
    1 Piece (MOQ)
    Contact Supplier
Forged Stainless Steel Pipe Fittings Threaded Socket Weld Half Couplings

Forged Stainless Steel Pipe Fittings Threaded Socket Weld Half Couplings

US $ 1-20 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Pipe Fittings, Flanges, Valves, Pipe Hangers and Clamps, Pipe Nipples, Couplings, Bolts and Nuts, Seismic Bracing
Contact Supplier
Audited Supplier
Qingdao HQ Import & Export Co., Ltd.

Shandong, China Since 2013
Chat Now Send Inquiry
A182 F316 3000# Sw Half Pipe Fitting Coupling

A182 F316 3000# Sw Half Pipe Fitting Coupling

US $ 0.35-15.9 / Piece FOB
1 Piece (MOQ)
More
Surface Treatment : Sand Blasted
Contact Supplier
Suzhou TLH Pipe Fittings Co., Ltd

Jiangsu, China Since 2025
Chat Now Send Inquiry
Forged Stainless Steel Pipe Fitting Half Couplings

Forged Stainless Steel Pipe Fitting Half Couplings

US $ 0.8 / Piece FOB
1 Piece (MOQ)
More
Main Products: Pipe Elbow, Pipe Tee, Pipe Cap, Pipe Reducer, Pipe Bend
Contact Supplier
Audited Supplier
Hebei Shengtian Pipe-Fitting Group Co., Ltd.

Manufacturer/Factory & Trading Company

Hebei, China Since 2013
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

About Pipe Half Coupling FAQ

  • QWhat benefits does manufacturing scaffolding in China provide?

    Upgrade your Scaffolding with the elegant and durable Pipe Half Coupling.Manufacturing scaffolding in China offers cost-efficiency, high production capacity, and access to advanced technology. Partnering with a reputable manufacturer allows you to customize scaffolding designs, ensure quality control, and meet customized requirements for your projects.

  • QWhat are the common types of scaffolding provided by suppliers?

    The Pipe Half Coupling is a premium choice in the Scaffolding category.Suppliers offer various types of scaffolding, including suspended, supported, and rolling scaffolds. Each type has specific applications depending on the construction requirements. Evaluate your project needs to determine the most suitable scaffolding type for your job.

  • QHow can I verify the reliability of a scaffolding supplier in China?

    The Pipe Half Coupling is a key item within our extensive Scaffolding selection.To ensure the reliability of a scaffolding supplier in China, conduct thorough research, check customer reviews, and request certifications and product specifications. Routine communication and site visits can provide insights into their production processes and quality standards.

Full Half Sw 3000 Coupling Pipe Fittings 3000lbs Coupling

Full Half Sw 3000 Coupling Pipe Fittings 3000lbs Coupling

US $ 0.35-15.9 / Piece FOB
1 Piece (MOQ)
More
Application : Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory
Contact Supplier
Suzhou TLH Pipe Fittings Co., Ltd

Jiangsu, China Since 2025
Chat Now Send Inquiry
A105 Forged Carbon Steel NPT Threaded Pipe Fittings/Half Couplings

A105 Forged Carbon Steel NPT Threaded Pipe Fittings/Half Couplings

US $ 1-20 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Pipe Fittings, Flanges, Valves, Pipe Hangers and Clamps, Pipe Nipples, Couplings, Bolts and Nuts, Seismic Bracing
Contact Supplier
Audited Supplier
Qingdao HQ Import & Export Co., Ltd.

Shandong, China Since 2013
Chat Now Send Inquiry
Factory Price Brass Compression Male Thread Coupling

Factory Price Brass Compression Male Thread Coupling

US $ 0.4752-0.4968 / Piece FOB
500 Pieces (MOQ)
More
Surface : Nickle
Contact Supplier
Audited Supplier
NINGBO STANDARD IMPORT & EXPORT CO., LTD

Zhejiang, China Since 2010
Chat Now Send Inquiry
A182 3000# Female Brass Steel Pipe Fittings Full/Half Coupling

A182 3000# Female Brass Steel Pipe Fittings Full/Half Coupling

US $ 0.8-100,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Steel Pipe Fittings, Steel Flange, Steel Elbow, Steel Tee, Gasket, Rubber Expansion Joint, Flexible Hose, Steel Reducer
Contact Supplier
Audited Supplier
Hebei Pipefun Pipe and Pipe Fitting Facility Co., Ltd.

Hebei, China Since 2024
Chat Now Send Inquiry
China Manufacturer ASME B16.11 Carbon Steel CS A105 3000lb 6000lb 1" Forged Pipe Fittings Th NPT Bsp Female Thread Half Coupling

China Manufacturer ASME B16.11 Carbon Steel CS A105 3000lb 6000lb 1" Forged Pipe Fittings Th NPT Bsp Female Thread Half Coupling

US $ 0.1 / Piece FOB
10 Pieces (MOQ)
More
Surface Treatment : Galvanized Sheet
Contact Supplier
Audited Supplier
Xingsheng Mechanical Technology Co., Ltd.

Manufacturer/Factory & Trading Company

Zhejiang, China Since 2019
Chat Now Send Inquiry
Carbon Steel Stainless Steel Pipe Fittings Forged 2000# 3" Threaded Half/Full Couplings

Carbon Steel Stainless Steel Pipe Fittings Forged 2000# 3" Threaded Half/Full Couplings

US $ 1 / Piece FOB
1 Piece (MOQ)
More
Main Products: Galvanized High Strength Steel Pipes, Carbon Steel Seamless Stainless Steel Elbow, Carbon Steel Thread Tee, Carbon Steel FF RF Blind Butt Welding Flange, Carbon Steel Cap, Carbon Steel Concentric Reducer, Thread Carbon Steel Seamless Nipple, Soft Seal Gate Valve Z45X-10q/16q/25q, Sockolet, Four Way Tee
Contact Supplier
Audited Supplier
Hebei Cangrun Pipeline Equipment Co., Ltd.

Hebei, China Since 2023
Chat Now Send Inquiry
Manufacturer Forged High Pressure A105n NPT Threaded Pipe Fittings 3000# Forged Steel Half Coupling

Manufacturer Forged High Pressure A105n NPT Threaded Pipe Fittings 3000# Forged Steel Half Coupling

US $ 5.21 / Piece FOB
1 Piece (MOQ)
More
Connection : Welding
Contact Supplier
Audited Supplier
Hebei Shengtian Pipe-Fitting Group Co., Ltd.

Manufacturer/Factory & Trading Company

Hebei, China Since 2013
Chat Now Send Inquiry
Stainless Steel Sanitary Fittings Nipples Half Pipe Couplings

Stainless Steel Sanitary Fittings Nipples Half Pipe Couplings

US $ 0.1-0.3 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Pipe Fittings, Flanges, Valves, Pipe Hangers and Clamps, Pipe Nipples, Couplings, Bolts and Nuts, Seismic Bracing
Contact Supplier
Audited Supplier
Qingdao HQ Import & Export Co., Ltd.

Shandong, China Since 2013
Chat Now Send Inquiry
Factory Supplier Carbon Steel Forged Pipe Fittings Forged 2000# 3" Threaded Half/Full Couplings

Factory Supplier Carbon Steel Forged Pipe Fittings Forged 2000# 3" Threaded Half/Full Couplings

US $ 6.66 / Piece FOB
1 Piece (MOQ)
More
Material : Stainless Steel
Contact Supplier
Audited Supplier
Hebei Shengtian Pipe-Fitting Group Co., Ltd.

Manufacturer/Factory & Trading Company

Hebei, China Since 2013
Chat Now Send Inquiry
Stainless Steel Female Internal Thread Pipe Nipple Half Coupling

Stainless Steel Female Internal Thread Pipe Nipple Half Coupling

US $ 1-1.2 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Industrial Valves
Contact Supplier
Audited Supplier
RST VALVE GROUP CO., LTD.

Manufacturer/Factory & Trading Company

Zhejiang, China Since 2016
Chat Now Send Inquiry
SS316/304 Forged Stainless Steel Pipe Fittings Socket Weld Half Coupling

SS316/304 Forged Stainless Steel Pipe Fittings Socket Weld Half Coupling

US $ 1-20 / Piece FOB
10 Pieces (MOQ)
More
Flexible or Rigid : Rigid
Contact Supplier
Audited Supplier
Qingdao HQ Import & Export Co., Ltd.

Shandong, China Since 2013
Chat Now Send Inquiry
Stainless Steel/Carbon Steel Socket Weld Tee/Cross/Lateral/Plug/Half Coupling by Forged Steel

Stainless Steel/Carbon Steel Socket Weld Tee/Cross/Lateral/Plug/Half Coupling by Forged Steel

US $ 1-10 / Piece FOB
100 Pieces (MOQ)
More
Main Products: Cast Iron Valve, Cast Steel Valve, Ball Valve, Ductile Iron Pipe Fitting, Forged Flange, Pipe Clamp Fittings, OEM Metal Pipe Fittings, OEM Valve and Pump Parts, OEM Stamping Parts
Contact Supplier
Audited Supplier
Qingdao Fluido Industrial Co., Ltd.

Shandong, China Since 2012
Chat Now Send Inquiry
View More

Related Searches

Stainless Pipe Coupling Plastic Pipe Coupling Steel Pipe Coupling Thread Coupling Flexible Coupling Flexible Pipe Coupling Quick Pipe Coupling Steel Pipe Socket Hydraulic Hose Coupling Brass Pipe Coupling

You may also like

Pipe Joint Copper Pipe Plastic Pipe Fitting Fitting For Pipe Pipe Fitting Supply Iron Pipe

Browse by Categories

Home > Construction & Decoration > Construction Equipment & Tools > Scaffolding > Coupler Scaffolding
1/248
TOP

Search Filter

Categories

More Less
  • Scaffolding
  • Coupling
  • Combination & Joint Fittings
  • Shaft Coupling
  • Elbow
  • Nipple
  • Construction Accessories
  • Pin
  • Machining Service
  • Compressor Parts

Lapping Form

More Less
  • Cross Ring Scaffolding
  • Double Scaffolding
  • Full Scaffolding
  • High Formwork
  • Single Row Scaffolding

Material

More Less
  • Steel
  • Metal

Move Method

More Less
  • Attached Lifting Scaffolding
  • Horizontal mobile Scaffolding
  • Integral Lifting Scaffolding

Structural Style

More Less
  • Multi-Pole Scaffolding
  • Tower Scaffolding
  • Soffit Scaffolding
  • Doors Scaffolding

Type

More Less
  • Fixed
  • Mobile

Company Type

More Less
  • Trading Company
  • Manufacturer/Factory
  • Group Corporation
  • Individuals/SOHO
  • Other

Company Location

More Less
  • Shandong
  • Hebei
  • Zhejiang
  • Jiangsu
  • Guangdong
  • Hunan
  • Tianjin
  • Shanghai
  • Anhui
  • Beijing
  • Hubei
  • Henan
  • Shanxi
  • Fujian
  • Sichuan
  • Liaoning
  • Heilongjiang
  • Jiangxi
  • Shaanxi
  • Chongqing
  • Hainan
  • Guizhou
Reset Done