南京化学2026年化机研-6601管件0720W1中国石化集团南京化学工业有限公司无缝弯头\90° DN25×SCH40S R=1.5D GB/T 12459Ⅰ 015Cr21Ni26Mo5Cu2 GB/T 13296无缝三通\DN25×DN25×SCH40S/SCH40S GB/T 12459Ⅰ 015Cr21Ni26Mo5Cu2 GB/T 13296无缝三通\DN40×DN25×SCH40S/SCH40S GB/T 12459Ⅰ 015Cr21Ni26Mo5Cu2 GB/T 13296无缝三通\DN15×DN15×SCH80S/SCH80S GB/T 12459Ⅰ 015Cr21Ni26Mo5Cu2 GB/T 13296
2026-07-21