1.process:mixing--compacting--sintering--resizing--cleaning--vacuum oiling--packing2.material:steel,copper,steel copper,bronze,alloy.3.produce equipment:200T,100T,60T,25T,15T,10T,6T,3T.4.high precision,100%quality with competitive price,good abrasion resistance,high efficiency,save energy.5.we can make the products according to customers'..