Advantage and defect of semi-metallic, none-asbestos polymer and powder metallurgy were discussed.
Advantage and defect of semi-metallic, none-asbestos polymer and powder metallurgy were discussed.
探讨半金属基摩擦材料、非石棉有机摩擦材料和粉末冶金摩擦材料的优缺点。
Advantage and defect of semi-metallic, none-asbestos polymer and powder metallurgy were discussed.
探讨半金属基摩擦材料、非石棉有机摩擦材料和粉末冶金摩擦材料的优缺点。