We, Wenzhou Senhong Liquid equipment Co., LTD are the manufacturer of the stainless steel tube and the pipe fittings. We are majored in the stainless steel tube (with the standard GB/T14975-94 GB/T14976-94 GB13296-91), and the pipe fittings(with the standard 3A. ISO. DIN. SMS, the elbow, the three-way, connector and the sanitation valve and filter).