Quzhou Zunlong Trading Co.,ltd was confirmed by Ministry of Commerce the People's Republic China. We are cooperation with bigger manufacturer crystal materials for long time. Also, we a security screen doors&windows from Zhejiang procince ,china. ...

Our company (the old name is Yantai Gem Factory) one of the largest production bases synthetic corundum in China, using Verneuil's method. We started to develop gemstones 1966, enjoying a long history gemstone production. We have strong team ...