SP2炼油部项目非标支管台、斜三通624800042478公开询比价采购预案中国石化上海石油化工股份有限公司45°嵌入式支管台\DN700×DN80 SCH40 BW ENR STD 20# NB/T 47008法兰支管台\DN300×DN40 CL300 RF ENR STD A105 ASTM A105法兰支管台\DN350×DN40 CL300 RF ENR STD A105 ASTM A105斜三通\45° DN700×DN550×10/8 BW ENR STD 20# NB/T 4700845°嵌入式支管台\DN300×DN80 SCH40 BW ENR STD 20# NB/T 47008法兰支管台\DN450×DN40 CL300 RF ENR STD A105 ASTM A105法兰支管台\DN550×DN40 CL300 RF ENR STD A105 ASTM A105
2025-11-10