Tungsten trioxide smart window producing method is based on the existing sandwich glass, settle the smart film between two layers of common glass.

Tungsten trioxide target preparation usually adopting producing method of electric ceramic, the process is ball milling, compression moulding, calcination, it is used for preparing WO₃ electrochromic thin film.

Tungsten copper spray drying method also called thermo-chemical synthesis method involves the preparation of the original solution and mixing, spray drying and fluid bed conversion in three stages. It is the solution to obtain chemical and physical atomized ultrafine particles by the method of combining physical means.

Tungsten carbide firstly mixes the various required powders according to the product requirements in a certain proportion, and the powder is pressed and formed. In a high temperature sintering furnace, tungsten carbide structure is formed through a precisely controlled heating process. The sintered tungsten carbide parts are processed into subsequent products by subsequent grinding, polishing, coating and so on.