Yu Jei industrial co. was founded in 1978 by Chen Her-Nan with more than 30 years experience in the manufacturing of various types of wrenches. Our product list includes, and is not limited to, combination wrenches, open-ended wrenches, double box end wrenches and many more which includes OEM products. We are very proud that our company output has increased steadily yearly and has dramatically increased to over 1 million units per month due to our customer satisfaction, quality of our product an... More