Hangzhou Amethyst Building material co .ltd. is a professional supplier of all kinds aluminum products , such as windows & doors, pvc doors metal stud and other building materials. We have complete set product line own the ability new development powerful ...

Founded in 1947 and re-established 1969, we are one of the largest specialized manufacturers aluminum extrusions our area. Located Guangzhou, capital Guangdong Province, have convenient access to freight facilities, can trans-ship orders through ...