UPC/CUPC

UPC is the United States International Pipeline HVAC Certification Association (IAPMO) certification mark, unified bathroom pipe product standards, is to enter the US market sanitary ware products, the authority of certification, with \"c\" refers to the Canadian market, cUPC is the North American market Of the sanitary ware products authoritative certification, which is headquartered in California, is a non-profit nature of the body.