1. maximum thick: 1.2mm 2. diameter: 100~1000mm 3. hydraulic type 4. economic hydraulic elbow making machine,gorelocker,spiral duct machinery,is for ... making duct elbows, max. thickness 1.2mm, max dia 1000mm.Hydraulic elbow making machine,gore locker,spiral tube former 3.1 ... plate,For stainless steel(Max.thickness 1.0mm)3.3 Diameter range of elbow: 100-1000mm3.4 Max forming speed: 120m ...