Shanghai Mechanical and Electrical Equipment Co., Ltd. Ching is a collection of scientific research , production and sales of high-tech enterprises, the main products are : Diamond drilling machines, wall cutting machine, magnetic drill ( core drilling ) drilling and other industrial machinery .Shanghai Mechanical and Electrical Equipment Co., Ltd. Ching is a collection of scientific research , production and sales of high-tech enterprises, the main products are : Diamond drilling machines, wall cutting machine, magnetic drill ( core drilling ) drilling and other industrial machinery . Since the venture, Shanghai Ching advocate: "hard work and innovation, build and Phoenix brand ; scientific management, improve enterprise efficiency ; people-oriented, talented persons ; sincere service , customers to a " business philosophy , after 10 years of hard work the development of the domestic industry to become one of the largest enterprises.