管道、管件各種端部連接方式你都知道嗎？下面，讓我們來看看這些專有名詞吧！
PE=Plain end=平口
BE=Beveled end=坡口
BW=Butt welding=對焊
SW=Socket welding=承插焊
NPT=National pipe thread=美標螺紋
PBE=Plain both ends=兩端平口
PLE=Plain large end=大端平口
PSE=Plain small end=小端平口
POE=Plain one end=一端平口
TOE=Thread one end=一端螺紋
TBE=Thread both ends=兩端螺紋
TLE=Thread large end=大端螺紋
TSE=Thread small end=小端螺紋
BBE=Bevel both ends=兩端坡口
BLE=Bevel large end=大端坡口
BSE=Bevel small end=小端坡口
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