Jiashan Tianyi Technology Co., Ltd

We have specialized in the production of steel ball retainers with *-year history. Our company boasts advanced production equipment and production technique. From miniature to extra large types, our products meet internationally advanced level in the quality. Our company strictly follows the standard of ISO***0 Quality Management System, and has a complete set of precise check-out facilities. For steel balls, we take strict inspection. Thus, our steel balls meet GB, G*0 and G5 level standards (precision size reaches 0.***1mm; steel ball mutual deviation size is smaller than 0.****5mm). We carry on all-the-way tracking systems to check product manufacturing processes. We strive for the perfection of our product quality.