Process connection连接方式
Butt weld ends connection对焊连接
Butt weld对焊
butt weld ends对焊
Flanged end to 法兰端
flanged ends to DIN standard德标法兰端
flanged end connection 法兰连接
wafer type 对夹式
BSP管螺纹
threaded ends螺纹连接端