Hebei anti-corrosion pipe insulation pipe insulation manufacturing company class 1 steel sets steel composite pipe insulation steel sets steel composite pipe insulation insulation structure based on sliding in different ways can be divided into two categories: 1, within the slide: insulation structure by the work of steel pipes, silicic acid aluminum, drag reduction layer, microporous calcium silicate insulation layer, stainless steel fastening strip, aluminum foil reflective layer, polyurethane insulation jacket steel pipe, external anti-corrosion layer. The inner sliding-type pipe insulation is made of a steel pipe of the conveying medium + complex silicates or porous calcium silicate + rigid polyurethane foam the + jacket pipe + glass steel casing corrosion protection layer structure constitutes. The various fittings node thermal insulation technology is mature, reliable quality. 2, outside the sliding type: insulation structure by the work of steel pipes, glass wool insulation layer, aluminum foil reflective layer, stainless steel fastening the strip, sliding guide bracket, air insulation layer, the outer casing of steel pipe, external coating composition. An outer sliding-type form of the pipe insulation structure pipe insulation outer sliding inner pipe 2, a zinc-rich primer 3, a slide guide bracket 4, refractory glass wool 5, aluminum foil reflective layer 6, the air insulation layer 7, the jacket steel pipe 8, jacket pipe coating layer