steam pipe nut 汽管螺母
pipe gland nut 导管封严压紧螺母
damper pipe union nut 减震器管联结螺母
galvanized nut steel pipe 镀锌钢管
nut for circulating pipe union 循环管连接螺母
Using pliers or a pipe wrench to tighten a bolt or nut. This may scar the bolt head or nut creating a sharp edge.
使用钳子或管扳手拧紧螺栓或螺帽。这样可能会刮伤螺栓头或螺帽，从而形成尖锐的边缘。
Pipe leakage or leakage that may be installed when the nut is not screwed tight.
管路漏水或漏气可能安装时螺帽拧得不紧。
Germany RBT import external thread needle valve can be equipped with stainless steel welded pipe, and pipeline butt welding connection, but also through the outer nut removing the valve.
品牌：进口外螺纹针型阀可配带不锈钢焊接管，能与管道直接对焊连接，也可通过外螺母拆卸阀门。
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