I was cheated by the punching machine of Liyang Group. Poor quality, worse service.

This situation is really speechless. Yang Li's old-fashioned punch is ok, but unlike pneumatic punch, the technology is not mature enough. When you buy a pneumatic punch, you choose Ward Seiki. Ward uses imported wet clutch, while Yang Li uses dry clutch. This is the main difference. Many parts used by Ward are imported from abroad, which are foreign patents. As small as a sealing ring, they are all imported. The largest sales store in Beijing, Tianjin and Hebei is in the west of Agricultural Bank of Wen 'an Machine Tool Market, where there is 24-hour after-sales service. I hope your problem can be solved smoothly!