Dongya Building Materials & Machinery Co., Ltd. , a professional company engaged in the manufacture of building materials machinery, is located in Jinzhou Development Zone, Hebei province, the largest manufacture base of decorative materials. Previously Jinzhou City Decorative Materials Factory and established in 1996, the company has produced the first gypsum board production line in Hebei province, and it has developed into a modern enterprise with a fixed asset of 80 million Yuan.