Zhejiang Sci-Tech University
Water flow standard device and Heat meter calibration device about ф20~ф40 |
Ningbo Devices and Instruments Institute
Water flow standard device about LBS-（50-800） |
Ningbo Keao Flow meter Co., LTD
Automatic camera mode Water flow standard device about LBS-15~500 |
Guangzhou Energy supervision inspection Institute
Water flow standard device about ф15~ф100、ф125-ф300 |
Hebei metrology science academy
Comprehensive water meter testing device about ф15~ф50 |
Beijing metrology and detect science academy
Comprehensive water meter testing device |
Beijing Tongzhou Devices and Instruments Institute
Automatic Calibrating device of Water meter about ф15~ф50 |
Beijing Fengtai Devices and Instruments Institute
Automatic Calibrating device of Water meter about ф15~ф50 |
Beijing Changping Device and Instruments Institute
Semi-automatic Calibrating device of Water meter about ф15~ф50 |
Beijing Ruipu Sanyuan instrument Co., LTD
Water flow standard device about LBS–250–2000 |
China metrology institute
Water , gas and oil calibrating device aboutφ15-φ65 |
Tianjin Measurement and Testing Technology academy
Comprehensive water meter testing device about φ15-φ50 |
Shanghai Measurement and Testing Technology academy
Calibrating device about ф15～ф50 water meter
Water flow standard device about ф4-ф300 |
Hangzhou quality and technical supervision inspection academy
Water flow standard device about LBS-15-600 |
