Inquiry (采购产品): Double Wall Piping I am inquiring if your company carries the double wall piping system primary is a 1/2" - 3/4" stainless secondary 1 1/2" or 2" fiberglass or plastic secondary system? Your soonest and assistance is greatly appreciated. Thank you, Genaro Danila, Vision Construction Co **** Hidden Message ***** Genaro Danila 138 Emma's St., Leyang Barrigada96921 GUM Company: Vision Construction Co Title: Project Manager Phone: (671) 734-1165 E-mail: vccdanila@guam.net **** Hidden Message ***** vccdanila@guam.net