亚洲人妖ts网站,夜夜春亚洲嫩草影院,欧美变态深喉囗交免费,av福利无码亚洲网站,黄色小说下载,恶魔契约书txt下载,小说免费

  Guanxian shandong crown zinc metal mstar technology ltd
   About us
       About us
       Products
       Buy
       Sell
       Contact us
       Chinese

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.

Shanghai Danfan Network Science&Technology Co., Ltd. All Rights Reserved.