Hebi Huanuo Electronic Technology Co., Ltd. is a high-tech enterprise specializing in the development and production of coal sampling and analysis instruments and meters. The products of coal quality analysis instruments and coal testing equipment mainly include calorimeter (calorimeter) department. Series of sulphur analyzer, muffle furnace series, moisture analyzer series, bond index analyzer series, colloid layer analyzer series, hydrogen analyzer series, industrial analyzer series, Harrington grindable analyzer series, ash melting point analyzer series, drum series, crusher series, prototype series, etc. Products are widely used in electric power, coal, metallurgy, petrochemical, environmental protection, geology, cement, colleges and universities, technical supervision and other industries and departments of laboratories, coal laboratories. Including the planning and design of coal laboratory, production, installation, commissioning and after-sales service of fixed equipment and supporting products.