... &density 3.High precision 4.Oem offered 5.Good Sintered parts Nantong Runfeng Powder Metallurgy Co., Ltd. is specializing in powder metallurgy,oil bearings ... supply components to Korea, America and japan. Our products are well known at home and abroad with a good reputation. powder metallurgy ... :200T,100T,60T,25T,15T,10T,6T,3T.5.high precision,100%quality with competitive price,good abrasion resistance ...