Leading Buttweld Pipe Fittings Manufacturers, Suppliers, Dealers & Stockists Max Pipes & Fittings INC. is a prominent manufacturer, supplier, dealer and exporter of Buttweld Pipe Fittings in Mumbai, India. ASTM A403 Stainless Steel Pipe Fittings come in various sizes and dimensions to match the requirements of our reputable clients and are supplied with the complete set of technical test reports.