Donghai chongrui technology Co.,Ltd main products are various sprcifications of quartz glass tube and non-standard instrument.we have the fixed asset for more than 8000 million yuan.The factory covers 30,000 quare meters. There 300-500 workers here.the geography position is superior with ...

Since our foundation of Oct. 1952, we had experienced tough economic fluctuations in the past and now established ourselves as one leading precision micro tube manufacturer. We thank to all customers who make us grow through business.. We, Nittokukan, have improved own technology such drawing ...