... types. The blades of plastic pipe cutters are made of Manganese 65 or SK5 steel. the thickness devides into two kinds 2 ... .0mm and 2.4mm, the hardness is 54±2oC, there are many kind of plastic pipe ... products, ordinary products),Japanese style pipe cutters, fast pipe cutters, fish-pipe cutters gun-cutters,Vinyl pipe cutters,ect. Metal pipe cutters, their baldes are ...