Zhuji yuye Hardware Factory is a professional manufacturer of manual slack adjusters, spring brake chamber, auto air dryer, air hose, brake hub cap. We are doing our best to be a real expert in this product. As we have been in this field for more than ten years, we build a complete product line with competitive price, including the most of popular model for manual slack adjusters. And after cooperation with some great companies, quality is improved. We warmly welcome customers both from domestic area and abroad to visit us, to establish long term business relationship based on mutual benefits.