槽钢

Last October the first batch of low-alloy channel steel was successfully rolled.

去年10月,成功轧出第一批低合金槽。

Channel companies welding stainless steel processing various models, ranging from heterotypic edge angle.I-H-plasma processing.

公司焊接加各种型号槽，等边异型角，字，H型等离子加等。