Established in 1988, Nakanishi Group is an enterprise integrating international trade, mining resources development, manufacturing, system integration, engineering consulting and maintenance services; it has several offices at home and abroad. Nakanishi Group of Companies is a system integrator of high-tech products. It has introduced a large number of foreign advanced on-line and off-line instruments, mechanical equipment and materials, and provided a large number of products and services for users in various industries, especially in the fields of petroleum, chemical industry, environmental protection, electronics, metallurgy, machinery, optics, communications, scientific and technological teaching, and medical and health care, etc., and has a close cooperation with many famous professional manufacturers in the world. At the same time, the company makes full use of the advantages of the Internet, not only to provide users with the widest choice of products, to obtain the optimal character ratio, but also to provide users with scientific and technological information quickly. At the same time, the company also recommended to the majority of users to use domestic affordable, reliable performance, stable use, in line with national quality standards of instruments, meters and equipment, at present, my company and many of the domestic outstanding instrumentation manufacturers agreed to have an agency agreement.