YINHAI TECH DATA OF 15" IADC537 DRILL BITS YINHAI PRODUCTION PROCESS --- ROCK BITS YINHAI   BITS  --- FORGIEN EXHIBITION   SHOW Hejian Yinhai Rock Bits Manufacture Co., Ltd is a ROCK BITS enterprise, our bits basing on high-tech skills and designs are used in the exploitation of natural gas, crude oil, water well, geological exploration and so on. There are technical research team, production management team and professional sales team in our company to serve customers. Both standardized tricone bits produced strictly according to API and rock bits-customizing used in various construction works are provided. Good quality is the main aim we abide by ,ever and forever.   Packing & shipping Packing: wooden case(standard export packing) Transportation type: by sea, by air, by train ect. as your requirement Our service Delivery Time: Based on order quantity, normally it takes 30 days for production. Only 2 or 3 days if we have stock on your request size. Quality Control: We have our professional QC and all the products will be strict inspection and testing for every order before shipping out. After Services: Technical Support will be available in any time. We could provide the professional suggestion for you. EX:1.Select the right most suitable products. 2. According to the rock types, choosing the face type, button tooth type. 3. According to the different purpose,. choosing the different body type .