We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for I/O Extension Unit, , , ,. With our rules of " small business standing, partner trust and mutual benefit", welcome all of you to definitely do the job alongside one another , grow together. The product will supply to all over the world, such as Europe, America, Australia,Ecuador , San Francisco ,Bolivia , Saudi Arabia .The design, processing, purchasing, inspection, storage, assembling process are all in scientific and effective documentary process , increasing usage level and reliability of our brand deeply, which makes us become superior supplier of the four major product categories shell castings domestically and obtained the customer's trust well.