Annealed Gb3639 Bright Surface Carbon Seamless Steel Tube

We are engaged in manufacturing, exporting and supplying an excellent quality Annealed GB3639 Bright Surface Carbon Seamless Steel Tube to our valuable clients in Changzhou, Jiangsu, China. We produced all different kinds of precision seamless steel tubes which are used widely for motorcycle and auto-mobile shock absorbers, bicycle chain, fitness equipments, electric motor shells, hydraulic pipes, and all kinds of gas springs products, the steel pipe is also applied as high pressure oil pipe of excavator and other construction machinery.
Now send you the normal specifications for your reference.
1, Used in constructions & machinery
2, Craft:cold drawn and cold rolled
3, Precision, +/-0.05mm
4, Surface bright polished or black
5, ISO9001 quality
6, Size ranges:OD 6mm-80mm, WT 0.6-10mm

Length:5-7m, it could be custom-made as well
1, Widely used in constructions & machinery
2, Size ranges:OD 6-65mm, WT 0.6-6.5mm
3, Precision:OD A 0.05mm, WT A 0.05mm.special accuracy:A 0.03mm
4, Length:5-7m, random length and fixed length
5, Craft:cold drawn or cold rolled
6, Certificate:ISO9001-2008 quality
7, Manufacture:direct selling
8, Annealed:+NBK, +GBK, +BKS
9, Experience: 13 years