Welcome to Helmco Manufacturing Welcome HMI Products Warranty Helmco Manufacturing, Inc. AN INDEPENDENT DIVISION OF HMS, INC. Est. 1973 Demand the best. Always insist on HMI Quality Excess Flow Check Valves.....the original and still the number one choice. HMI A LEADING MANUFACTURER of Excess Flow Check Valves for liquids, gas, or vapor flow lines in refineries, chemical plants, city water lines, local gas company lines, ships, barges, tankers, tanker trucks; anywhere a break in a flow line poses a hazard or simply to limit the flow to a predetermined amount. We offer many standard flows in a

Ann ArborASAP Source ANGLE CHANNEL HALF-ROUND H-COLUMN / I-BEAM HEX OTHER PRODUCTS PIPE / HOLLOW RECTANGLE / FLAT ROUND SHEET / PLATE SQUARE TEE TELESCOPIC HEX TUBE RECTANGLE TUBE ROUND TUBE SQUARE ZEE Alro Metals Plus Alro Steel Corporation has purchased certain assets of ASAP Source. This business will continue to operate under the name of Alro Metals Plus. In addition, this website will continue to operate under the url www.asapsource.com . Please note: Alro Steel Corp. has a legal obligation to collect sales tax from the following states: Illinois, Indiana, Kansas, Kentucky, Michigan, Miss