All rolls and tools that are used on the BG pipe making machine are internally designed and produced. BG has a special department that is equipped with modern equipment and skilled personnel. BG makes rolls for production of round, square, rectangular, plum blossom, flat, oval, fan-shaped, polygonal, groove, door-frame, special-shaped tubes and for others profiles. Roller sets/Mould are parts of stainless steel making machine. Different size of roller will influence the tube/pipe size. Bigger roller will make large tube. Therefore, Roller is essential in stainless steel making machine. BG moulds are made of high quality material Cr12Mov/SKD-11. With high wearing resistance, good strength and toughness, high pressure resistance, high hardness and hardenability properties, it's the first choice material for roll sets. All steel rolls, after the heat treatment, are rectified on the total surface. Process: Raw material-material testing-forging-sawing-lathe-drilling-lathe-CNC lathe-grinding-quenching-hardness testing-internal and external grinding-testing-packing.