... the material is brass Brief introduct:1, GBC type ball valve is a manual adjustment stop valve, and ... suitable for bi-directional flow.2, GBC type ball valve is used for liquid , suction and heating ... with valve seat and sealing place.4, GBC type ball valve is direct connection, it can provide maximum ... flowability.6, The structure is argon arc welding.7, The valve rod has anti-explosion design.8, ...