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Dampers are an important component of ventilation and smoke extraction systems. They are applied to many different underground facilities such as road tunnels, railway tunnels and metro lines, as well as for the mining and marine industries.
Beijing Rock Technology Co., Ltd. is specialized for large fabrication of ventilation fan, axial and centrifugal. Besides, we can also weld other products according to drawings, pressure tank expecially.
Why Choose Us?
1. We have 12 years experience in large matal fabrication with low price and high quality.
2. All kinds of surface treatments are available: Polishing, Epoxy Coatings, zinc plating, nickel plating, powder coating, e-coating, DIP coating, phosphate coating, anodizing, painting, etc...
3. We can provide aluminum alloy castings, fabrications, deep drawing, machining, welding and assembly.
4. Roviding samples with important dimensions and customizing inspection report, material certification to customer for validation and verification
5. We specialize in fast turn around with low volume orders. Please forward your specification for quoting.
Material: carbon steel or according customer requirement.
Thickness: above 6mm or customized
Size: according to customer's requirement or drawing.
Surface treatment: shot blast, galvanize, oil, painting...
Matal cutting: laser cutting(<=20mm), plasma cutting
MOQ: 1pc
Production time: one-two weeks
Technology: rolling forged and welded
Package: steel pallet
Welding workshop
Centrifugal fan casing
Pressure tank
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