Cold-formed steel (CFS) is the common term for products made by rolling or pressing steel into semi-finished or finished goods at relatively low temperatures (cold working).corrosion resistant and weather resistant steel can be also supplied according to following standard & specifications : cor-ten® a, cor-ten®a, cor-ten a, corten-a, corten aDiffusion Engineers is the best infrastructure in industry that involves into the wide range of welding consumable, welding electrodes maintenance, manufacturers and suppliers of wear plates and components in India.ASTM's steel standards are instrumental in classifying, evaluating, and specifying the material, chemical, mechanical, and metallurgical properties of the different types of steels, which are primarily used in the production of mechanical components, industrial parts, and construction elements, as well as other accessories related to them.View and Download Armstrong HWC PREMIER 122 service reference manual online. HWC PREMIER 122 Air Conditioner pdf manual download. Also for: Hwc premier 123, Hwc premier 182, Hwc premier 183, Hwc premier 242, Hwc premier 243, Hwc premier 302, Hwc premier 203.