Corrugated bellows gas pipe interface manufacturer processing tool

1 Piece Corrugated Pipe Interface Processing Tool. Used to processing of corrugated pipe. 1# for 13.5mm(3/8") stainless steel corrugated pipes. 2# for 25mm(1") stainless steel corrugated pipes. 3# for 16.8mm(1/2") stainless steel corrugated pipes.