CHINA
Hall 3
Q33
Butterfly Valve, Control Valve, Oil and Gas Valve
1. RESSONABLE STRAUTURE, RELIABLE SEAL, EXCELLENT PERFORMANCE, GOOD SHAPE
2. SEALING SURFACE WITH CO-BASED HARD ALLOY, GOOD WEARABILITY. CORROISON-RESISTANCE
3. STEM THOUGH QUENCHING AND SURFACE NITROGEN TREATMENT