SAND is the oldest and time-honored manufacturer for melt pressure sensor, indicator and regulator etc. since 1992 with more than 20 years experiences. SAND has already become the most professional enterprise with great influence and scale in China and is one of the biggest manufacturers. We attach great importance to our products quality and reputation. Our products have obtained ISO9001:2000 quality management system certificate, and passed the CE-Declaration of conformity and EX-Declaration of conformity. All of our production processes and product designs are in accordance with ISO9001and CE standards. We mainly sold domestically in the last decade. But in recent years we have developed lots of new products and have enjoyed good market both home and abroad. Our products are exported to Europe, United States and other 50 countries and regions and enjoy high popularity among new and old customers and agencies. Many products manufactured by us rank the first place in China. For example,*The first intelligent digital pressure gauge manufactured by us; The first PID pressure regulator used for chemical fiber industry manufactured by us; *The first on-site display electronic gauge manufactured by us; *The first mechanical pressure gauge with a super small diaphragm for remote transmission manufactured by us; *The first melt pressure transducer/transmitter of high temperature and high pressure manufactured by us; *The first melt pressure transducer/transmitter with all sorts of anti-corrosion coating manufactured by us;*The first melt pressure transducer/transmitter is with the diaphragm coated fluoride manufactured by us;