The customer is the leading enterprise in the international hydraulic industry. Previously, when choosing the indexing chuck, the customer also purchased several domestic and foreign brands of chucks, and ultimately chose us. At present, our indexing chucks are used in two domestic pipe fittings factories. One-time machining of elbow, tee, cross and other products is realized by using indexing chuck on the customer site. Drill directly with U drill and carbide drill. The number of machines operated by worker has also been changed from four to 8 (matched with one on one manipulator). OEE of equipment has also increased by more than 20%. At present, our company has more than 60 sets of chucks in use in the two factories of this customer.