... seat 2. It is used with 6CT8 engine valve 3. One is valve with intake and exhaust Valve SeatRemarks: 1) We manage ... tensioner, water pump, lubricating oil pump, engine valve seat, engine valve oil seal, engine valve guide, fuel transfer pump, and so on. We can ... are mainly sold in the domestic market and also exported to Unites States, Europe, Japan, Middle East, Africa and Southeast Asia ...