四机D22X250701链条框架协议中石化四机石油机械有限公司精密滚子链\3 38.1mm GB1243链条\3 38.1mm API7F链条\8 44.5mm API 7F链条\6 38.1mm GB1243链条\1 19.05mm GB1243链条\4 50.8mm GB1243链条\4 31.8mm GB1243链条\4 25.4mm GB1243链条\3 44.5mm GB1243链条\3 31.8mm GB1243链条\2 44.5mm GB1243链条\2 50.8mm GB1243链条\2 38.1mm GB1243链条\1 44.5mm GB1243链条\1 9.525mm 48节GB/1243链条\3 50.8mm GB1243链条\4 38.1mm GB1243链条\1-38.1mm精密滚子链\08A-1 40Mn精密滚子链\24A-4 45#精密滚子链\24A-8 35CrMo过渡节\2 44.45mm
湖北/荆州-2025-07-28 00:00:00
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