Zhejiang Smart Sealing Co.,Ltd. located in Hangzhou City, near the beautiful West Lake, and international airport. It\'s very convenient for transport.  We\'re professional manufacturer following field of sealing products: a) Packing: graphite packings, PTFE Aramid ...

Sanshin has been involved in the development of our own technologies based on and experiences manufacture lapping film polishing machines through partnership with manufacturers. As a result, we successfully researched developed high-quality, high-reliability ultra-precision systems ...