Vacuum tube specification: § 47-1500mm § 58-1800mm § 70-2100mm

Outer material: Aluminum-plates the zinc plate or the fluorine titanium board, thecolor steel plate, in buckles the end cover

In gallbladder material: Food grade stainless steel sus 304-2B

Support material: The aluminum alloy anti- oxidizes the support

Heat insulating layer thickness: 50-60 millimeter polyurethane whole becomes spongy

Appropriate angle: 45°