Our company is located in Wenzhou city.We can manufacture quadrate tube, rectangular tube, seamless stainless steel tube of specification of OD 6 to 630 mm and welded tube of specification upwards of OD 114mm according to the standard of GB, ASTM, JIS, DIN and GOST and so forth. We not only have advanced production line, but also advanced quality detecting, ie.read-directly spectrum instrument, infrared CS analysis instrument, which can...