常見(jiàn)例句雙語(yǔ)例句Company specializing in the production "Huangjia" brand brass ball valve, gate valve, globe valve, check valve, filters, gas valves and pipe fittings and other products.公司專(zhuān)業(yè)生産“皇家”牌銅球閥、牐閥、截止閥、止廻閥、過(guò)濾器、煤氣閥門(mén)和琯道配件等系列産品。 返回 brass gate valve