1)Inner tank: SUS304-2B food grade stainless steel

2)Outer tank: Steel with surface of plastic painted

3)Support: Steel with surface of plastic painted

4)Vacuum tubes: 3-high vacuum tube

5)Capacity: 150L~360L

6)Apurtue area: 1.67~3.55

7)Reflect angle: 38/45/50

8)Inner tank thickness of 0.31~0.5mm

9)Tank diameter: 420/460/480mm

10)Heat preservation: 72hrs

11)Heat-pipe vacuum tube: 58mm*1.8m~2.1m*15pcs~36pcs