卫宜康 wei yikang

卫生适宜技术 Proper health technique ; Appropriate health technology ; Appropriate hygiene technology

帕斯适宜卫生科技组织 PATH

适宜卫生科技组织 PATH

卫家宜 weijiayi

栢欣宜卫浴 baixinyi sanitary ware

农村卫生适宜技术 Appropriate technologies for rural health