Balance Precision Grade G4000 Crankshaft actuation of low speed marine diesel engine with rigid mounting of single cylinder G1600 Crankshaft drives for rigid mounted large two-stroke engines G630 Crankshaft drives for rigid mounted large four stroke engines Crankshaft drivers for resilient marine diesel engines G250 Crankshaft Drive of High Speed Four Cylinder Diesel Engine Rigidly Installed G100 Crankshaft drives for six-cylinder and multi-cylinder high-speed diesel engines; engines for automobiles, trucks and locomotives G40 Car wheel, hub, wheel body, drive shaft, six-cylinder and multi-cylinder high-speed four-stroke engine crankshaft drive G16 Special requirements drive shaft (propeller, universal joint drive shaft); parts of pulverizer; parts of agricultural machinery; individual parts of automobile engine; crankshaft drive parts of special requirements six-cylinder and multi-cylinder engines G6.3 Gear of the main turbine of a merchant ship or ship; drum wheel of a high-speed separator; fan; rotor component of an aeronautical gas turbine; impeller of a pump; machine tool and general machine parts; rotor of a common motor; individual parts of an engine with special requirements G2.5 Gas and steam turbines; machine tool drivers; medium and large motor rotors with special requirements; small motor rotors; turbine pumps G1 Drive parts for tape recorders and vocators, CD、DVD; grinder drives; small armature for special requirements G0.4 spindle of precision grinder; motor rotor; gyroscope