sell globe valve stem

详情

permit;But uses the tradition not to have the filings to roll the silk vulnerably to roll the mold,Easy to distort,Distortion

2. The light pole spot uses the grinder precision not to be high,Consumes when is long,

3. Pours the light spot to use two times of attires to clamp turns around knocks it off the seal,The concentricity is bad,Pours seals Yi Lou

4. The end spot uses milling machine graduated disc minute,Processes slowly,The working procedure are many,Consumes when is long