About Us

Suzhou Keystone Mechanical and Electrical Technology Co., Ltd. is a Manufacturers, specializing in the production of Coordinate Measuring Machine, Video Measuring Machine, Digital Microscope, Digital Microscope Accessories, LED Lighting for Microscope, etc.

KEYSTONE is a subsidy of ZENZON TECHNOLOGY (HONGKONG) LTD,established in Kunshan in 2013. The HQ ZENZON,established in 2001, is a professional distributor of many world-famous brands in measuring industry,after years of experience and technical accumulation,the company decided to build own equipment,so Keystone was born.

Keystonehas been highly focused on precise and high resolution measuring equipment and is a leading supplier of varieties of measuring systems or devices such as Coordinate Measuring Machine(CMM),Optical/Vision/Video Measuring Machine(OMM/ VMM),Video Microscope(CCD), Customized Automation Equipment solution and Fixturesin China.

Keystone startedto explore overseas markets in 2016,and had supplied measuring systems in Vietnam, Thailand, Singapore, Malaysia,Bangladesh and India.To meet the inquiries and requirements of customers worldwide, we are working on setting up distributors or service centers in South-East Asia.Quality is on the top of our priorities, and we definitely take it no compromise, however we always do everything possible to supply cost-effective products to our customers at the same time. And we do hope that we can help our clients worldwide for effective technology upgrade and revenue growth by supplying our precise, cost-effective and efficient equipment, solutions and services in time.

Enterprise culture & principles:

Quality is lifeline for an enterprise; Enthusiastic service is our tenet; Reasonable pricing is the objective we pursue. Meanwhile we hold the principle that customer is the God. In the aspect of technique, we strive to keep improving so as to provide premium quality products, and endeavor to create maximum benefit for customers.


Quality policy:

Qualification rate ≧98%; Customer satisfaction rate≧90%; Timely delivery rate≧98.



Meet customers’ satisfaction based on the principle of integrity and customer first.

Supply with premium products based on the principle of quality first and expertise.

Create profit for customers based on the principle of effective innovation and high efficiency.

Co-shape a bright career based on the principle of society duties.



Keep strengthening management, continuously improving technique and quality to satisfy employees, customers, suppliers as well as investors and to rationalize operation, and realizing sustainable development.