DC , DAA , DAB , DAC 焊接结构用碳钢:SM400A SM41A SM400B SM41B SM400C SM41C SM490A SM50A? SM490B SM50B SM490YA SM50YA SM490YB SM50YB SM520YB SM53B SM520YC SM53C SM570 SM58
压力容器用碳锰钢:SPV235 SPV315 SPV355 SPV410 SPV450 SPV490 SGV410 SCV450 SGV480 SGV42 SGC46 SGC49 SB410 SB42 SB450 SB46 SB480 SB49 SB450M SB46M 让我们展望未来,您的智慧我们真诚的服务;携手共创前程!