Brand:huatailong
Model:dw15
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1.valve opening and closing torque is little ,opening easier and time,
2.tensile,wirest resistant,high strength,enhance valve life
3.Smooth surface coaxial degree good. Use sealing performance is high.

1.valve opening and closing torque is little ,opening easier and time,
2.tensile,wirest resistant,high strength,enhance valve life
3.Smooth surface coaxial degree good. Use sealing performance is high.

