Shanghai Hardness Steel Ball CO., LTD, is located in Shanghai, China. It is a professional company which produces all kinds of steel balls, such as, Carbon steel balls, Chromium steel balls, stainless steel balls and so on. The diameters are from 0.2mm-30mm.

In the production process, we are always stick to the ISO-9002 Standard so that our products can meet the international standard with advanced technology and equipments. With high quality products, perfect after service and hardworking staff member, Hardness has made great success both in sales and international popularity since its foundation...

Our company has majored in steel balls several years. Our products are marketable all over the world and can be relied on with full trust by customers and deeply praise. We have established sales network in domestic and overseas.

Introducing the world-up technology, sticking to our quality guarantee, providing all the customers reliable products and credit first have always develop its advantage and make the products as a faith, the market as a guide to create a word-famous brand of the products.