Inner tank and outer tank are food grade stainless steel, welded by argon arc. Heat insulation of water tank adopts polyurethane foam Frame is food grade stainless steel. The tubes and supports are adjustable, power bearing is average and assure the tubes to use long time. Whole vacuum tube adopts super borax and silica glass. Silicon ring to connect and seal them.
Inner tank and outer tank are food grade stainless steel, welded by argon arc. Heat insulation of water tank adopts polyurethane foam Frame is food grade stainless steel. The tubes and supports are adjustable, power bearing is average and assure the tubes to use long time. Whole vacuum tube adopts super borax and silica glass. Silicon ring to connect and seal them.
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