Qinhuangdao Xunling Technology Development Co., Ltd. is an environmentally friendly high-tech innovative enterprise dedicated to providing customers with high-quality products and services. We embrace all rivers, with sincerity as the priority, tolerance as the greatest, and trust as the most important. We promise to always be honest and upright in everything we do. The company adheres to the highest tenet of "customer first, professional victory", providing customers with worry free services and technical support throughout the entire process of product consultation, technical selection, online sales, installation and commissioning, and after-sales maintenance. Our company is currently an authorized first tier agent of TOWA SEIDEN INDUSTRIAL CO., LTD., a Japanese company. Founded in Osaka in 1969, Japan's Donghe Company, as a pioneer in powder level measurement, has accumulated numerous sales achievements and won high trust from users. Nowadays, Japan's Donghe Company has made significant progress not only in the field of powder particles, but also in the level measurement of liquids, pastes (slurries), and even global solution manufacturers. The company's core competitive products, including resistive rotary level switches, capacitive level switches, heavy hammer level switches, and blockage alarm flow switches, are widely used in industries such as steel, cement, papermaking, power plants, ports, plastic packaging machinery, automotive manufacturing, and pharmaceuticals. HEYL NEOMERIS, authorized first level agent and after-sales service center in China, is committed to providing high-quality water quality monitoring solutions for users in various fields such as pure/ultra pure water, softened water, drinking water, municipal sewage, industrial wastewater, industrial circulating water, environmental monitoring, and university research. We offer high-precision instruments and expert level services to our customers. HEYL NEOMERIS, a German company, is a professional manufacturer of water quality monitoring instruments and pre made reagents for water quality analysis. Founded in 1959, it is one of the top 100 companies in Germany. HEYL's full range of products includes online analysis systems, control systems, handheld rapid detection equipment, rapid detection kits, ultraviolet equipment, ozone equipment, etc. Among them, online hardness testing products account for 70% of the German market and 40% of the European market. Authorized distributor of Vulcan in Germany, Christiani Wassertechnik GmbH (CWT) Group was established in 1948 with its headquarters located in Berlin. It is a globally renowned multinational corporation specializing in the research, development, and manufacturing of water treatment equipment. The Woken electronic descaling system is widely used in pipelines for scale deposition caused by hard water in various fields of life, commerce, and industry, and is an environmentally friendly alternative to water softeners.