[Gold and silver paper equipment] [Weifang gold and silver paper equipment] Shuangbao Coating Machine Qingzhou Shuangbao Packaging Coating Machinery Co., Ltd. was established in 1982, located at 2279 Jiangjunshan Road, Qingzhou City, covering an area of 10000 square meters, with a building area of 7000 square meters, complete mechanical processing equipment and powerful technical force