Brand: other operating temperature: normal temperature flow direction: one-way connection type: thread shape: ball type material: brass model: 4 minutes to 3 minutes or 4 minutes appearance: medium valve standard: British standard specification: 4 minutes double outer wire copper natural color long handle gas valve, 4 minutes to 3 minutes double outer wire copper natural color long handle gas valve drive mode: steam sealing material: copper pressure environment: atmospheric pressure