Beijing Housekeeping, Beijing Monthly Nurse. The Hundred Ring Housekeeping Department of Beijing Bai Zhicheng Technology Training Co., Ltd. is a professionally registered maternal and infant care company. The Hundred Ring Beijing Housekeeping and Beijing Monthly Nurse Company has been praised as the best Beijing housekeeping and monthly nurse company by the labor department and the Women's Federation. All monthly nurses and housekeeping staff in Beijing are selected and sent by women's federations from all over, ensuring they are safe, reliable, and of high quality, reducing your worries.