About usOur company has been specializing in metering systems since 1992 founded. We\'ve the market and building volumetric standards prover tanks for over 20 years. All of our products are made to have traceability international calibration regulations ...

 Haixing county eastern measurement instruments co., ltd. Wasstarted in 1998. It located the old haixing quanlitysupervise department. Our company is at west of bohai sea,the north shandong province, south tianjincity. The metal we produced very ...