部件名称 DESCRIPTION 备注REMARK 截止阀 Throttle check valve 6.4 10 20 25 逆止阀 Regressive check valve 6.4 9.5 12 25 管路配件 Pipe system fittings 各种管接头,三通,接管,管套,螺帽,管夹等 Various kind of pipe connectors, tee-connectors, joint popes, pipe sleeves, nuts, pipes, clamps etc.