... Hole Size: 0.1MM-100MMMaterial: Hot-rolled and cold-rolled carbon steel sheets,galvanized sheets, ... , aluminum,aluminum-plastic, copper, nickel, titanium, PVC and othermaterials.Opening: Round, oval, square, rectangular, rhombus, ... bending, reeling,welding, shaping and surface treatment.Application: Mine, machinery, food, stationery and sportsgoods, kitchen and toilet supplies, muffler, decoration ...