... 4.Oem offered 5.Powder metal high precision gear Nantong Guanda Powder Metallurgy Co., Ltd. is specializing in powder metallurgy,oil bearings, ... spread out all over the the country, and we supply components to Korea, America and japan. Our products are well ... ,sleeve bearing, bushing, bush,pulley,timing pulley,structural parts,powder metal parts,nut,auto parts,sintered parts,rotor and stator etc. ...