Product Parameters Main Products Compression spring, tension spring, torsion spring, wire forming, etc. OEM/ODM Accepted Specification Make as per drawing, wire diameter from 0.1mm to 20mm Material Carbon steel (SWC), stainless steel (SuS), music wire (SWP), alloy steelSEA9260/9254/6150,SUP9/SUP10/SUP12,51CrV4,inconel X750, etc. Surface Treatment Zinc plated, nickel plated, electrophoresis, oxidation black, powder coating, blasting.geomet, rust-preventative oil,etc. Certificate ISO/TS16949-2002,IS09001-2000,IS014000 Lead Time Samples:3-7 days; Production:7-15 days after deposit recieved. Shipment By sea, by air, UPS, TNT, Fedex, express delivery, etc. Hot Sale Products Company Profile FAQ Q1. Are you a trading company or a manufacturer? A1.We are a manufacturer, you are warmly welcomed to visit us. Q2.What information do you need for quote? A2. Detailed drawings(PDF/STEP/IGS/DWG) with material, quantity and surface treatment information. Q3. Can I get a quote without detailed drawings? A3.Yes, it's appreciated if you can send us your samples, or drafts with detailed dimensions for us to quote. Q4. Will my drawings be divulged to others? A4.No, it's our obiligation to protect our customers' privacy of drawings, signing NDA is accepted if need. Q5. What's the lead time? A5.Usually, 1-2 weeks for samples, 3 weeks for mass production. Q6: What if the products I received are of poor quality? A6. If the products you received are of quality issue, please send us pictures or videos to let us know the details, we will arrange to reproduce for you if it's our responsibility.