... BOSCH GWS20-180 180MM 2.Material:20CrMnti 3.Professional quality! BOSO factory is a professional manufacturer of power tools, and ... produce spare parts: armatures, stators, aluminium casting, gears and carbon brush.Electric Tool Gears and ... Mr.) Sales Manager Jiangsu Delika Mechanical and Electric Tools Co.,ltd(BOSO/JIAPENG Power Tools ) Add:Lvsi Port Town,Nantong ...