The date of payment from buyers deliver within days
The inner and outer walls of the steel pipe have no oxide layer, and are subjected to high pressure and no leakage, high precision, high smoothness, no deformation of cold bending, and no cracking or squashing.
(honed tubes/ skived roller burnished tubes)
Steel grade: ST52, ST52.3, E355, STKM13C, SAE1026, 25Mn, 27SiMn, SAE1020, SAE1045, A106Gr. B, CK20, CK45, 4140, 42CrMo, Q345B, Q345D, Q345E, Stainless Steel 304/316, Duplex 2205, etc.
Length: max 15m
Tolerance EXT: DIN2391, EN10305-1, ASTM A519, GB/T8163-2008
Tolerance INT: ISO H7, H8,H9
Type: cold drawing, cold rolling, inside bore/ honing
Heat treatment: BK+S, Stress Release
Conservation: anti rust oiled inside and outside surface, plastic caps in both ends.
Package: bundle with steel strip and knitting strip, or wooden case.
Customized -- We are the manufacturer! Samples are available!
Safety -- We have own test laboratory, all of our products have been rigorously tested in the factory.
Certification -- We have CE and quality management system certification.
High Quality -- Our company uses the most advanced equipment to make the best quality products.
We provide free technical service about our products and application issues.
Free on-site touring and introduction of our factory.?
We provide process design and validation for free.
We can guarantee on-time delivery of samples and goods.
Close follow-up of all orders by special person and keep customers informed timely.
All after-sale request will be responded in 24 hours.
1. Checking raw material before producing.
2. Checking one by one before the assebling?
3. Checking one by one during the production
4. Have the random inspection before the delivery.