Qingdao Haiyu Gas Co., Ltd. Add: Qingdao Chengyang Jihongtan Jinling Industrial Area. Contact: Sun Qianzheng Tel: 086-0532-87909568 0532-87909578 Fax: 086-0532-87909316 Web: http://www.haiyuqiti.cn E-mail: haiyu0532@yahoo.com.cn