Zentro Co., Ltd. has a joint-venture factory located in Kaohsiung City to produce the various kinds of open-die screws. Our open-die screw factory was eatablished in 2005. We accumlate the aboundant experiences and know-how to make good quality of product with competitive prices. We are welcome the customers who have the demands of OEM of open-die screws or any Trading Companies for long-term cooperation. If you have any question, please contact us. We will be glad to be of your service.