WE WOULD LIKE TO USE YOUR WIN CATT TORQUE TURN SYSTEM ON OUR TEDA CHINA MAKE MODEL TQ 350- 35 YA HYDRAULIC POWER TONG TO HANDLE 4-1/2\' TO 13-5/8\'\' CASING.rnHIGH GEAR TORQUE-3450 FT-LBS.rnLOW GEAR TORQUE-2581 FT-LBS.rn