1.Specification

Double wall welding steel pipes/bundy pipes main size OD and thickness

2. Mechanical property and chemical composition:

Mechanical property

3. application

Double wall bundy tube mainly used on brake tube, oil injection tube line and link pipe parts for automobile industry, and some for refrigeration condenser and evaporator.It would be in coils and straight tube.

testing and inspection

Special service

If clients have special requirement on the material, tube size, tube type, mechanical property, length, packing conditions, Pls contact us free. if we can do,we will do it as customizing. 

Questions and solve methods

1. Are you a trading company and manufacturer?
Yes, we have have plant and trading company, we can deal business both, but do it as condition.

2. How can I get your prices?
Please show us your target tube size (OD ,wall), material (steel grade),coating types( coating types on OD/ID both), in coil or straight length tube(if length, how long per pcs?), quantity, packing requirement ,application and specialy requirement. Then,we can send you an exact quotation within 24 hours.

3. What's your MOQ?
For common coating type and common size, MOQ is 3000kg ; for specially coatinf type or specialy size need confirmed.

4. How can I get some samples to do quality approved?
After quotation confirmed, we can send some samples for testing, severl pieces tube are free,but big quantity maybe charged and freight should be bear by client.

5. What about the leading time for mass order producing?
Usually, 15-25 days for material preparing and producing after order confirmed, and 10 days for shipment booking and confirmed.35 days min for common size and type, special size and type need confirm.

6. Could the tube be customized for us?
Sure, we are professional supplier.when we confirmed and accept all your target requirement,we can customize the tube as your target.