Shandong Guanxian crown zinc metal material technology Co., Ltd. was established in 2011, Chau Co., Ltd. Shandong venture, registered capital of 490 million yuan, covers an area of 100 acres, zinc oxide with annual production of 6000 tons, more than 50 employees, the specialty is engaged in the production and sale of zinc products technology development and zinc oxide. In 2012 passed the ISO9001 quality management system certification.