... table for two pieces joining →multiple spot welding→side seam welding→head welding→side shearing→head cutting→end productItemDataStandard panel size310mm, 320mm, 460mm, 480mm ... ±1.0mmPanel bearing pressurePositive pressure≥ 0.15Mpa, negative pressure ≥ 133Kpa, without deformationPanel materialST12, SPCC, DC01 cold rolled steel, 1.0-1 ...