nged expansion joint的意思|示意
美 / /
英 / /
Nged伸缩缝
nged expansion joint的网络常见释义
带搭钮膨胀节你好 ... 美利坚合众国规范锥管罗纹American standard taper pipe thread(NPT) 带搭钮膨胀节你好nged expansion joint 万向型膨胀节universal type expansion joint ...