Jinan JL Precision Measuring Tools Co., Ltd.

Jinan JL Precision Measuring Tools Co. LTD, locating at the quarry site of famous "Jinan black" granite sources, Mountain Hua Shan industry development zone, Licheng district, in the city of Jinan. The close to raw material of highly qualified Jinan black granite, along with experienced workers and specialists for many years from this industry, becomes our most favorable advantages for the company. That leads to our rapid growth from the new generation group as a rising strength leader in this industry area.

We focus on precision granite manufacturing for 20 years. We export to worldwide for more than 15 years with high reputations. Our factory covers the area of 20000 square meters, employees with 85 experienced workers. Factory includes raw material workshop of 5000 square meters, machining workshop of 4000 square meters, constant temperature lapping room of 1000 square meters; and owns a variety of processing and testing equipment of more than 60 sets.

Our mechanical processing and quality control all takes advanced management method in our industry area, and are now taking computer data processing system during manufacture process.

Our factory management relies on experts and professional workers with more than 20 years experience in this area, combined with modern management methods. Our company takes the concept of "Quality and reputation as our life", and honest to each one of our customer and be strict with each one of our product as our goal.


We mainly manufacture and supply:
Special designed granite parts, used as stage base or components for precision measuring machines, such as CMM granite base, granite frame for the optical measuring equipment, laser cutting machine base, PCB drilling machine bed etc. Those can be made exactly according to custom drawings or samples. Our technical engineers can also check and provide with technical supports with what you need for your design.

Standard granite measuring tools, including: Granite tables, Granite surface plates with support stands; Granite straightedges, parallel rulers; Square rulers of Triangle and Rectangle; Granite boxes and V blocks.

Standard measuring products can be made according to various of national standards, such as ISO 8512, GB 20428, JJG-117, DIN 876, GGG-P 463, BS 817 and JIS B7510. Special granite parts are processed and inspected according to custom drawings. Certificated by the bureau of national standard measurement, our factory is qualified to manufacture and authorized to provide testing certification of granite measuring products.

Please send us your inquiries by email.

We look forward to our stable and long terms cooperation.