青青草久热国产视频_青青草a国产免费观看_青青草久热精品视频在线观看 狠狠色综合7777久夜色撩人,综合一区中,狠狠做深爱婷婷久久综合一区,欧美激情综合色综合啪啪五月

TUS Ultrasonic Gas Meter
With independent intellectual property rights, TUS ultrasonic gas meter is featured with high precision, reliability and stability. The product meets different users’ demand with its multiple soundtrack layouts and supporting of multiple communication modes. The meter is equipped with built-in temperature sensor which measures temperature inside pipes and automatically corrects the expansivity of meter’s housing so as to avoid the measuring inaccuracy caused by thermal expansions and contractions of meter’s housing. Based on the international standard ISO 17089, the US standard AGA9 and national standard GB/T 18604, being an ideal meter for users to achieve measurement with high precision and reliability, the product is suitable for utilizing in the long distance pipeline, city combustion gas, petroleum, chemical, electrical, and metallurgical industries.