carbon steel pipe bending machine 1.high-tech processing 2.OEM as your design 3.high quality carbon steel pipe bending mechine pipe bending mechinethe ... °,carbon steel, alloy steel,stainless steelthe range of the bend pipe:Φ50-Φ426mm,the min-diameter:2.5D.The main oil ... beding fitings with the data showing. big diameter carbon steel pipe bending machine