管型 Tube(Pipe)：圆盘管及直条圆管 disc tube and vertical tube
牌号Alloy: 1100,1050,3003,3103,LF21,5049,5052,6061,6063 & 6082 etc.
状态state: M,MY2M,Y2, Y4,T4,T6,T83,H14, H34
规格size: 8x0.4,7x0.4,6.04x0.4,8x0.5,8x1, 10x1.25, 15.88x1.2, 9x2, 12x2, 16x2, 10x1.65, 11x1.8, 12x1.75, 14x 1.75, 15.88x1.65, 18x2, 12.7x1.2, 9.53x1, 16x1.5, 18x1.5, 19.05x1.65, etc.
用途application：热交换系统