Liangshan Changzai Machinery Manufacturing Co., Ltd. mainly produce trailer parts such as landing gear, kingpin and airtank ***** well-equipped production testing, management system, passed the ISO9001 auality management system certification.With competitive product price, high quality and customer satisfaction service, we won the customer high praise. If any requirement of the trailer parts, please be free to contract with us anytime and we will try our best to serve you.