主营产品：Formaldehyde detection climate chamber, VOC detection environmental test chamber, formaldehyde and TVOC detection, VOC emission environmental test chamber, automotive interior parts VOC environmental test chamber, vehicle VOC environmental test chamber
主营产品：Online infrared thermometer molten steel infrared thermometer ultrasonic flaw detector thickness gauge electric spark leak detector hand push gas detector four-in-one gas detector soil non-nuclear density meter asphalt non-nuclear density meter flue gas analyzer
主营产品：Indoor air purification services; cleaning services, professional treatment of volatile harmful gases such as formaldehyde, benzene, ammonia, TVOC, etc. and engages in research and development, consulting and product marketing of indoor air purification technology.
主营产品：Electronic density meter, Baume degree meter, plastic density meter, liquid density meter, solid and liquid density meter, precious metal purity detector, powder metallurgy density meter
主营产品：Petrochemical machinery and equipment, food packaging, textile machinery, pipelines, valves, security, communications, auto parts, medical drugs, etc.
主营产品：High temperature aging room/chamber, salt dry and wet composite (alternating) corrosion test chamber, sulfur oxide salt spray corrosion test chamber, carbon dioxide salt spray test chamber, mixed gas corrosion test chamber, carbonization test chamber, constant temperature and humidity heat test chamber, constant temperature ( Salt) water tank, oven, constant temperature drying oven, high temperature aging test chamber, UV aging test chamber, ozone aging test chamber, xenon lamp aging test chamber, yellowing resistance test chamber, high and low temperature alternating damp heat test chamber, anti-rust grease damp heat test Box, sand and dust test chamber, condensation water test chamber, acid-base immersion test chamber, freeze-thaw test chamber, concrete carbonization test chamber, concrete rapid freeze-thaw testing machine, fully automatic concrete sulfate dry-wet cycle testing machine, vibration table
主营产品：Wholesale and retail purification equipment and accessories, gas purification agent, monitoring instruments, dust collector, cleaning equipment, environmental protection and purification engineering design and construction
主营产品：Petroleum, petrochemical, chemical, coal, metallurgy, electric power, municipal, fire-fighting, medicine, universities and research institutes, environmental protection bureau, safety supervision bureau
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