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Changzhou Shenghai Meters Co., Ltd is a leading instruments manufacturer in China, founded in 2001, the workshop area is 12,000 square meters, we have ISO9001 management system along with many products that have CE certification, and have gained rich experience in producing pressure gauges, thermometers and other instruments, many specialized equipments for calibrating the indications, and many CNC machines for procceding instrument parts and accessories.