Shandong Hanlan International Trade Co., Ltd. is a comprehensive enterprise that integrates production and sales. The company is located in the beautiful Jiangbei Water City - Liaocheng, Shandong. Our company is located in the Economic Development Zone of Liaocheng City, adjacent to the Jiguan Expressway to the north and the Beijing Kowloon Railway to the west, with convenient transportation and superior geographical location.Our main products are cold rolled precision seamless steel pipes, cold drawn seamless steel pipes,auto parts···