... FOR CUTTING JADE STONE, ETC. JIGSAW BLADE, Hack Saw Blades PLANER BLADE, METAL SAW BLADE, HSS Slitting Saw blade CYMBAL SHAPE GRINDING WHEEL1.The common ... defect in metal surface in cars. ships,mechanic manufacturing metallurgy, chemical industry and so on.To improve the strength ... treatment of metal, mainly aspects as below: (1) Rough machining of surface(polish, pull rough, rust clearance)(2) Clear ...