Koslow Scientific Company is a globally recognized source of innovative quality control & testing instruments. Since 1966 our metal testers, passivation test kits, and analytical test probes provide reliable, affordable, repeatable testing results for the identification and verification of industrial and laboratory materials.
Koslow Scientific Company has always been a family business. Founded by Dr. Ralf H. Koslow, PhD in Chemistry, is now operated by his son William Wolfgang Koslow. Dr. Koslow’s company hallmark since 1966 has been to provide affordable, easy-to-use, earth-friendly test kits and putting our customers first. The company has now been providing these kits for more than forty years. Our kits are the result of research and testing performed in our own state of the art laboratories in New Jersey.
Through the successful combination of analytical chemistry, electrochemistry, and metallurgy, Koslow Scientific has developed a broad line of kits for the rapid field identification of materials such as steels, nickel, aluminum and titanium alloys, brasses, bronzes, and space age metals.
Kits from Koslow Scientific are used throughout the world to supply timely metallurgical identification in quality control and incoming inspection departments, material storage and scrap yards, warehouses, machine and welding shops, U.S. military, and a host of other areas where rapid, simple and positive metal identification must be made.
At Koslow Scientific, we leverage our experience, technology and resources to provide electro-chemical products of the highest quality. We guarantee timely service, backed by a responsive, knowledgeable customer support staff.

Shanghai HangOu Mechanical & Electrical Equipment Co., Ltd. was established in 2006, and is specializing in the import of mechanical & electrical equipment spare parts, instruments and other products and brands of worldwide. These products are widely used in metallurgy, iron and steel, petrochemicals, energy, aerospace, container terminals, automation, water conservancy, papermaking, power plant, textile, injection molding, rubber, medical treatment, food packaging and other fields. Our main product lines include: sensors, motors, switches, electronic scale, encoders, controllers, analysis meters,optical fibers, gratings,valves, warning lights, cable, towline, distributor, gearbox, relays, buffers and imported hardware. ShangHai HangOu Mechanical And Electrical Equipment Co.,Ltd
Address： Room 905, Building No.1, Guoson Centre, Lane 388, Zhongjiang Road. Shanghai, China.
Tel：0086-21-51085161
Fax：021-51870910

E-Mail：sales@shhangou.com
sales@shhangou.com.cn
Zip Code：200062
Website：www.hyrwatch.cn
www.hyrwatch.cn.cn