No. 517, Middle Changjiang Road, E Qingdao Shandong 0, No. 517, Middle Changjiang Road, E

We hold a strong company profile owing to 18 Years of export history and the most satisfied consumer base we achieved through our finest quality investment casting,precision casting,hydraulic parts,l...

16654 Soledad Canyon Rd. , # 322

OptiSpac specializes in manufacturing a variety of hermetic packages in solution of glass-metal seal. We follow ISO9001:2008 rigorously, and keep fast pace with high-tech development, challenging intr...