YAJI Co., Ltd. using its own designed aluminium profile and accessory to produce aluminium windows and doors especially focus on the U.S., Canada and Australia markets with complete certification such as AAMA, Australian Standard, AWA, MA, SA, CE. Ding Kin’s aluminium doors and windows can meet various opening methods, provided customers with scientific and comprehensive solutions according to the market and customers’ demand. Ding Kin’s aluminium window and door projects are mainly home improvement, apartments, private villas and hotels from Euro, America and Australia.

Quality is YA JI’s top priority. To ensure the highest quality, we have completed all metal material production, manufacturing, and surface treatment processes in our Dingjian factory. We offer a wide range of accessories for various aluminum alloy doors and windows, meeting all your needs. With our outstanding craftsmanship and superior quality, we are committed to providing you with satisfactory services.

Whether you are tapping, milling or notching mounting holes, keyholes, hinge holes, runners, etc. on aluminum profiles or curtain wall profiles, our CNC machining services can produce aluminum profiles that meet your specific needs.