SP2炼油部项目镍基合金及低温钢法兰624800042172公开询比价采购方案中国石化上海石油化工股份有限公司对焊法兰\CL300 DN20 SCH40S RF ASME B16.5 F20 ASTM A182对焊法兰\CL300 DN40 SCH40S RF ASME B16.5 F20 ASTM A182对焊法兰\CL150 DN40 SCH40S RF ASME B16.5 F20 ASTM A182对焊法兰\CL300 DN40 SCH160 RF ASME B16.5 LF2 CL1 ASTM A350对焊法兰\CL150 DN600 10 RF ASME B16.5 LF2 CL1 ASTM A350承插焊法兰\CL150 DN40 SCH80 RF ASME B16.5 LF2 CL1 ASTM A350承插焊法兰\CL300 DN20 SCH80 RF ASME B16.5 LF2 CL1 ASTM A350
2025-10-23