Ụgwọ nke ụlọ ọrụ Beijing Rofea Optoelectronics Co., Ltd. Adreesị Mba.3, Jinxing West Rd, Daxing District, Beijing E-mail bjrofoc@rof-oc.com Ekwentị + 86-010-53689170 WhatsApp +86 18978968297
