in such low temperatures, pipes, valves and fittings and other material must be of special low-temperature-resistant materials.
在此种极低的温度下,管道、阀门和管接头等的材质必须采用特殊的耐低温材料。
the quality of valves and fittings apply with the inspection of the general bureau of quality inspection, and the company is awarded the brand 「 reassurance 」 .
而且被中国国家质检总局,认定联发生产的阀门,管件,质量多年连续合格及放心牌产品称号,并发奖牌。
we offer a wide range of metal and plastic valves and fittings that keep residential, commercial and industrial operations flowing smoothly throughout the world.
我们提供系列广泛的金属和塑料阀门和连接件,在全世界为家庭、商业和工业领域提供顺畅的流体控制服务。