QINGDAO GRAND INDUSTRY CO., LTD, located in the charming city of Qingdao, Shandong province. Thanks for the China government's reform and opening-up policy, we have chance to introduce China’s products to all over the world, especially building material, With the professional team of more than 30 years’ experience, Qingdao Grand Industry Co., Ltd became one leading manufacturer and trading platform on ste...