Shenzhen Oishi Industries Co., Ltd., founded in 2001, is an authorized import and export company in China. We manufacture various sewing supplies which included trouser hooks, waist adjuster, skirt hooks, collar hooks, spring hooks, snap fasteners, and silk covered snaps. All our products are registered in China under the trade-name of "K.O". Our products are designed to meet industry standards for both China and Europe and have been certified by Intertek and Oeko-Tex standard 100. To adhere to customer-centric philosophy, and by years of hard working, Shenzhen OISHI Industries Co., Ltd. has won the trust of its customers. Currently, 85% of sounded Chinese brands of mens ware are using K.O hooks & bars; more than 100 well-known brands from over 20 countries have put K.O hooks & bars into use. K.O is committed to provide the best quality products while remain competitive in pricing to our customers.