We are located in Shanghai. Our chief line is exporting. specialized all kinds of steel tubes/pipes (carbon steel/alloy steel/stainless).we also deal the products which mill cannot produce. Tube ASTM A53, A 106, 161, 179, 192, A199, 200, 210, 213, 500, 519, 556 DIN 17175, DIN2391, DIN2393 ...