Abstract: Present invention teaches using MGO (magnesium oxide) materials, with the formula of the ingredients as disclosed to create a paste of slurry mixture. A molding and curing process is done by placing a layer of alkaline fiber in a mold with repeated application of the slurry mixture. Additional surface treatment, after hardening/curing, can be done to create surface decorative features, using environmentally friendly water-based coating, to suit clients' specification.

Abstract: Present invention teaches using MGO (magnesium oxide) materials, with the formula of the ingredients as disclosed to create a paste of slurry mixture. A molding and curing process is done by placing a layer of alkaline fiber in a mold with repeated application of the slurry mixture. Additional surface treatment, after hardening/curing, can be done to create surface decorative features, using environmentally friendly water-based coating, to suit clients’ specification.

Abstract: A heat exchanger comprises a body having a passage through which fluid to be heat-exchanged passes, a heat transfer plate conducting heat exchange relative to the fluid to be heat-exchanged through the body. The heat transfer plate is provided with a plate body having a contact face that contacts an outer surface of the body, and a plurality of wall-shaped heat conductors being protruded from the contact face of the plate body and arranged inside the body. The body is provided with a plurality of slit-shaped holes into which the plurality of wall-shaped heat conductors are inserted and fitted at positions avoiding the passage, respectively, thereby to cause the heat conductors to be arranged inside the body. Each one heat conductor is formed smaller than a hole fitted to define a gap relative to said hole fitted.