奇米久久久-奇米狠狠一区二区三区-奇米777在线视频-奇米777在线-无码日本被黑人强伦姧视频-无码又爽又刺激视频A片涩涩

Life expectancy is much oxygen tube?
Jiangyin Machinery Equipment Co., Ltd. is the United States to tell you at the end of the use of stored in a dark place will extend the life of the oxygen tube. Many of our customers have continued to increase the use of tube 4-5 In yet replaced, but after a few years of use oxygen tube will gradually aging. In order to maintain the highest efficiency of aeration, we generally recommend the use of 3-4 years after the replacement of the oxygen tube. Need to refer to Continuous use of the oxygen tube to increase the service life, as many of the sewage treatment plant can be used continuously for more than five years. In addition to adding a blower filter cover to prevent contaminants from entering the oxygenTube wall, is effective to prevent clogging of the way.