Cangzhou Sanqing Industry and Trade Co., Ltd. is a member of the Water Supply and Drainage Equipment Branch of China Construction Metal Structure Association and the Material and Equipment Management Branch of Hebei Construction Industry Association. It is a member of China Gas Association. It drafted and passed the national standard "IAPMO PS117-2016" for thin-walled stainless steel pipes and pipe fittings in the United States. The drafting unit of the national standard "GB/T 29038-2012" technical specification for thin-walled stainless steel pipes, the national standard "CJ/T 466-2004" standard for stainless steel pipes and double-clamp pressure pipe fittings for gas transportation, and the drafting unit of the national urban standard "CJJ/T 154-2011" technical specification for building water supply metal pipes; The products are shortlisted in the 2014 National Engineering Construction Standard Technology and Product Application Catalog.