对焊环松套法兰

  • 网络Butt welded ring loose flange;PJSE
对焊环松套法兰对焊环松套法兰
  1. GB/T15530.6-1995铜合金对焊环松套板式钢法兰七号干线〔铜锣湾中环西营盘〕

    Loose plate steel flanges with copper alloy welding neck collar Route 7 [ Causeway Bay Central Sai Ying Pun ]