Zhejiang Langci Medical Equipment Co., Ltd, located in the west of Shanghai, and near the Thousand-Island lake. Our company mainly engaged in medical equipments. Langci has a standardized workshop of 2400 m^2, a class 100,000 GMP workshop of 1200 m^2. We also have a R&D development and first-class control laboratory. With abundant technical strength and mature management power, we have developed many kinds of masks, including single use face mask, surgical masks, and respirator masks.