| Beijing Hvsf United Chemical materials co., LTD | |
| Add:No.18 Jianguo RD, Chaoyang district, Beijing, China, | Moble:+86-13366977697 Mr.Cui |
| Tel:+86-10-57862036 57862181 65405760 67374028 | Fax:+86-10-65712882 |
| E-mail:huafenginfo@126.com | Url:http://www.piyifu.cn |
