... certificate Powder metallurgy sintered cheap bearings manufacturer for garden tools Features: 1High density and good strength2Good abrasion ... , bushing, fastener,rotors,pulley.Other sintered parts like bushings, sleeves, pistons, connecting rod, fasteners, nuts, rotors, stators, ... saving.7. Application: our products are widely used in garden tools, power tools, automobile, motorcycle, farm machinery, ...