HEATKEYS

Tools and Basic Information for Design, Engineering and Construction of Technical Applications

MARYLAND METRICS - Your one-stop METRIC HARDWARE source offers over 1,200,000 METRIC sized items from over 900 suppliers, worldwide: Fasteners, Hand Tools, Cutting Tools, Measuring Tools, Hydraulic & Pneumatic Fittings & Tubing, Oil Seals, O-...

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Tambe Metal Products provides ductwork fabrication and complete installation of residential and commercial heating and air conditioning systems.

HVACcharts.com is your source for superheat, subcooling and a variety of other refrigeration calculators.

Specializing in airborne noise control, structure-borne vibration isolation, seismic and wind restraint, floating floor systems, industrial noise and vibration control, environmental noise control, community noise control, and acoustical wall treatme...

Stocking distributor of specialty metals for the aerospace, medical, prototype and OEM markets.

Stride Tool, Inc. - Supplier of Imperial Brand Specialty Hand Tools

OnlineMetals - Small quantities, no minimums of all industrial metals. Cut to size steel, aluminum, stainless, cold finish, tool steel and brass custom cut online. Fast shipping to your door. Point. Click. Metal.

CustomPartNet is a free resource for engineers and manufacturers that facilitates product design and cost estimation. Learn about the process cycle and design for manufacturing (DFM) guidelines for a wide range of manufacturing processes, including i...