The main products of calcium silicate pipes are 43% calcium silicate, 44% calcium oxide, and reinforced fibers. The products are made by stirring, heating, bonding, forming, pipe hardening, and drying. They have the characteristics of light weight, low thermal conductivity, bending resistance, and high compressive strength, and are used in construction. They are used in petroleum, electricity, building partitions, curtain walls, roofs, and building envelope insulation