Shanghai Jvjing Precision Instrument Manufacturing Co., Ltd. was founded since 1995, is formerly named instrument department of CAS(Chinese Acadmy of Sciences). Through great efforts in the past 20 years, we create our pround brand SIOMM!

Our professional developing and producing teams have more than 10 years experience. We are specialized in developing, producing and selling Hardness Tester. Our advanced design, skilled manufacturing technology and strong sciences research ability will provide high quality products and high level service to Military and Aerospace Industry, Research Institutions, Universities and Factories.

We have about 200 staff, include about 40 professional engineers and 4 higher consultants.They have higher professional knowledge and very rich experience in fields of materials, machineries, electronics and automatization which keep our products at higher quality.

Our company is located in the beautiful international city-Shanghai,covers about 3,000 square meter,close to G15 high speed way and Wusong Port,about 30mins from Shanghai Hongqiao Airport and Shanghai Railway station.

Hardness Tester we produced include:  Briness, Rockwell, Vickers, Leeb series about 100 catagories, we also can produce according to customer's requirements.

With strong techinical team and research power, we insist on "Technology Innovation", standard as full aspects, high quality, fast reponse. we are aimming at customer's satisfaction to supply our high quality products and high level service.

We sincerely welcome customers from home and abroad to visit us, let's make progress together and reach win-win cooperation!