We are Guangzhou Hongda Steel Tube Co., Ltd（www.hongda-steeltube.com), which is specialized in produce and sales of steel tubes. Our main products are below:
(1) seamless carbon steel pipe:
standard: ASTM A53, A106, API 5L, A179, A192, A519, DIN1629, DIN17175, DIN2391, etc
material: Gr.B, SAE 1010, SAE 1020, SAE 1035, SAE 1045, St 37.0, St 35.8, etc
O.D.: 1/2--12'' , W.T.: sch10-sch160
(2) seamless stainless steel pipe:
standard: ASTM A312/312M, ASTM A213/213M, ASTM ... More
