日韩欧美国产综合视频在线免费看_国产东京热无码av_在线观看精品国产午夜福利片2b_欧美一区二区网_真实强奷视频在线观看_麻豆系列果冻传媒app_无码中文AV不卡_国产日韩亚洲第一区_国产精品小视频帅哥内射_日韩亚洲欧美性感视频影片免费看

Pipe connection type:

a, flat end connection:

The use of flat port butt bonding process can reduce leakage points.

b, flange connection:

It can produce flanges and non-standard flanges suitable for GB, HG, HGJ, JB, DIN, JIS, ANSI, ASME and other standards.

C, socket connection:

Socket "O" seal ring connection or socket bonding.