Henan Liwei Industry Co., Ltd:
1. Since 1988, Top 3 manufacturer of rubber expansion joint in China;
2. The Main Drafting Committee of National Standard for Rubber Joint;
3. Qualified Supplier for CGN Nuclear Power Plant;
4. Certificate: ISO9001: 2008/ ISO14001: 2004/SGS
Rubber check valve,duckbill valve,rubber joint