Group Address Add: No. 251, East 2nd Road, Dongcheng, Dongying, Shandong Fax: 0546-8307178 Postcode: 257091 E-mail: huaya@hydyplst.com.cn Total telephone: 0546-8305238 Product purchase and consultation: 0546-8305238 ext. 600 Human Resources Tel: 0546-8305238 ext. 201 Raw material Supply cooperation Tel: 0546-8305238 ext. 212 Complaints and service Tel: 0546-8305238 ext. 501