Ningbo Chenglong Standard Plece Molding Tool Co., Ltd. is a leading China manufacturer. We are specializing in screws, thimbles and screw machines of industrial products. The Chenglong Company was founded in 1996 to serve the industry product in Ningbo China. The range of our product line, good quality, and competitive prices have made us one of the fastest growing companies of its kind in Ningbo. Since then we have expanded our market year by year to where we now have customers in 12 countries around the world.