SP2炼油部项目镍基合金管件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无缝偏心大小头\DN40×DN20 SCH40S/SCH40S ASME B16.9 N08020 ASTM B366无缝弯头\90° DN40 SCH40S R=1.5D ASME B16.9 N08020 ASTM B366无缝三通\DN40×DN40 SCH40S/SCH40S ASME B16.9 N08020 ASTM B366无缝弯头\90° DN20 SCH40S R=1.5D ASME B16.9 N08020 ASTM B366
2025-10-23