There are two sectional concepts. One is asymmetrical section rectangular to axis of output shaft, the sectional face is located in the upper part for the rectangular installed casting. Which is favorable for sealing of contact faces; the other one is sectioned at middle line. Cylindrical gear is designed of single helical tooth, the conical gear is of spiry tooth. All the gears are made of alloy steel, grinding the teeth after case-hardening. Shafts are made of quality quenched and tempered steel, bearing are all roller bearings. Main features 1) Standard materials according to technical drawing. 2) High quality standard guaranteed. 3) Long lasting working life time. 4) Positive feedback from abroad and domestic customers. 5) Long exporting history. 6) Competitive price level. 7) Able to produce according to specification with technical drawing. 8) Sample purpose order accepted. 9) Packing according to specification required. 10) Flexible and convenient logistic service.