https://aqua-fitting.en.made-in-china.com/product/EGiRXLKxgSWB/China-Tapping-Saddle-for-Di-Pipes-Pipe-Fitting.html
Tapping Saddle for Di Pipes Pipe Fitting - Saddle and Flange Adaptor
Tapping Saddle for Di Pipes Pipe Fitting, Find Details and Price about Saddle Flange Adaptor from Tapping Saddle for Di Pipes Pipe Fitting - Aqua Fitting Pipe...
pipe fitting and flangetapping saddledi pipesadaptor
https://patents.google.com/patent/CN111761658B/en
CN111761658B - Automatic bilateral tapping machine for forming saddle-shaped hole in batten of...
The invention relates to an automatic double-sided hole punching machine for punching saddle-shaped holes, in particular to an automatic double-sided punching...