SPIRAL WELDED PIPE LINE

上捲→開卷→頭尾矯平→切割對焊→圓盤剪→廢邊卷取→

銑邊機→遞送機→預彎導板→成型機→內、外焊→

切斷→拔出→平頭倒稜→水壓試驗→成品收集

loading coil→uncoil→leveling→cutting and butt welding→circle shear→trimming→

edge milling→delivering →prebending→forming→interal、 external welding→cutting off→

pulling out→flat head chamfering →hydraulic testing→collection