1,Overall Welding; 2,Thickness :2mm; 3,Material: SUS304 The water leakage testing machine is our own developed machine. It is used ... operated and efficiency.Main Structure Perfomance:1,Overall Welding;2,Thickness :2mm;3,Material: SUS304 Stainless Steel4,Subject welding seam ... welding; no virtual weldingThe Production Efficiency: 30seconds/piece Leak testing tank for inner tank of solar Water heater