Our companies are willing to co - operate with you by providing the best quality and the most cost effective instant hot - water heater to meet the customer ' s requirements for excoriation and renovation 本公司愿意与贵公司合作，为贵公司提供品质优秀、性价比更高的即热式热水器，来满足装饰和装修的需要。
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Abstract : the water - saving solar hot - water heater is improved . the replacement of the two - position water and vapour valve of the water - saving solar hot - water heater by the two position automatic prot ection valve leads to the transition from hand to automatic protection 文摘:用自动保护双位阀替代节水太阳能热水器的通水输气两位阀，使节水太阳能热水器从手动保护过渡到自动保护，改进了节水太阳能热水器系统
