In 1971 we started as a rock crystal mining company and became an enterprise with restricted responsibility (Goiana Importadora e Exportadora Ltda.). After this year it began to acquire large quaring...

Located in Beijing, Beijing, China, we are setting a benchmark in the textile industry being a leading Manufacturer and Supplier of Quartz Sand. Established back in 2001, we first started with a bare ...

outh of west hepinglu

Donghai chongrui technology Co.,Ltd main products are various sprcifications of quartz glass tube and various non-standard instrument.we have the fixed asset for more than 8000 million yuan.The factor...