St Paul Industrial Valves Manufacturers 5858 Centerville Rd Specialty Manufacturing is a manufacturer of valves, including ball valves, check valves, needle valves, miniature valves, selector valves, swivels, strainers and filters and pressure controls. St Paul MN Industrial Valves Manufacturers Specialty Manufacturing Co www.specialtymfg.com valves check valves connectors fittings pipe fittings brass fittings ball valves strainers plastic valves needle valves water valves nozzles fabricating pressure regulators rotary valve pipe plugs pneumatic valves stainless steel valves flow control valves check valves connectors fittings pipe fittings brass fittings ball valves strainers plastic valves needle valves water valves nozzles fabricating pressure regulators rotary valve pipe plugs pneumatic valves stainless steel valves flow control Business Reviews Specialty Manufacturing Co Testimonials