Qingdao Yongliyuan Chemical industry co.,Ltd. is a expert manufactroy of inorganic chemical combination production.Our main productiong include BaNO3,BaCl2,BaSO4 from powder to sand size.

• 青岛永利源化工有限公司是生产无机化工产品的专业生产厂家，主要生产硝酸钡、氯化钡、重晶石粉、重晶石砂等。