We are one of the best seamless carbon and stainless steel tube products manufacturers and exporters in china. Our main products is different seamless steel tubes: O. D. Range: 5mm~820mm. W. T. 0. 5mm~80mm. Process: Cold drawing, Cold rolling, Hot rolling, Hot expanding. Standard we could supply is as below: ASTM: A53, A106, A192, A179, A210, A519, A312, API 5L, API 5CT, Etc. DIN: DIN17175, DIN1629, DIN2440, DIN2391, DIN2393, Etc. EN: EN10210, EN10255, EN10216, EN10297, EN10305. We export large quantity to many countries because of our high quality and the price is very competetive. If you need some further information, Please contact and wish to cooperate. Any inquiry within our product range, Please feel free to contact me.