(resistant to flush

main business of gongao valve: Y type shut-off valve, anti-shrink stop valve, vacuum stop valve, angle stop valve, ammonia stop valve, low temperature stop valve, flow check valve, air discharge check valve, power station check valve, forged steel ball valve, high temperature and high pressure gate valve, air pump check valve and other industrial system valve equipment. it is a modern enterprise integrating scientific research, development, production, sales, and service.

programming and development 2025-03-20