... Patent owner 2.Durable, with lower maintain cost 3,Origin of heat: coal, gas stove and remnant heat of the stove. 4. ... including technology development, production lines design, complete set of equipments(complete with electrical appliances) and non-standard parts supplement ,adhesive provision ... ,000m³/h efficiently and the price of it is lower than 30% comparing with the same product.3,The complete ...