|
My co***ny to ISO9001-2000 international quality management system as the foundation stone, and through the American petroleum institute API 5 L the authentication and CE certificate, my co***ny to 21 mm-914 mm of large diameter seamless tube steel pipe, tube, thermal expansion hot-rolled steel give priority to dozen of steel products. There are the largest area of Cangzhou seamless tube and hot-rolling production equipment, and can do it by myself NDT experiment, squashed hydrostatic pressure test, the tes...
|
Home
