Handmade silicon rock sandwich color steel plate, with color coated steel plates on both sides, inorganic glass magnesium plate and silicon rock core materials, and iron keel frame or aluminum alloy cold drawn male and female mouth frame around. The core material and color coated steel plate surface are both made of PAPU single component polyurethane strong adhesive. After curing, the adhesive strength is extremely strong and will not melt or drip at high temperatures. The cured adhesive layer is non-toxic and odorless, meeting the requirements of relevant IOS or IMO standards. Has surface aesthetics, sound insulation, thermal insulation, thermal insulation, seismic resistance, and fire resistance performance. The construction and installation are convenient and fast, with significant comprehensive benefits. Mainly used in electronics, industrial plants, pharmaceuticals, purification rooms, chemicals, and fire prevention workshops.