Volume: 105~135L; 135~300L. Vacuum tube: 47*1500mm; 58*1800mm. Skin material: Fluorocarbon board with high quality. Inner tank material: Imported SUS304-2B food grade stainless steel. Insulating layer: polyurethane's cellular(thinkness:60-70mm). stent : Imported stainless circle steel. Specification: 15pipes\16pipes\18pipes\20pipes\24 pipes\30pipes\36pipes.