... 2.Good abrasion resistance&hardness 3.High precision 4.Oem offered 5.Powder metal high precision gear Nantong Guanda Powder Metallurgy Co ... spread out all over the the country, and we supply components to Korea, America and japan. Our products are well known ... :200T,100T,60T,25T,15T,10T,6T,3T.5.high precision,100%quality with competitive price,good abrasion resistance,high efficiency ...