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Structural Welding
Found 2 free book(s)GUIDELINES FOR WELDING THERMOPLASTIC MATERIALS …
wegenerwelding.comIn hot gas (air) welding, the heat transfer medium is a heated gas, in general clean air. In the infancy of plastic welding, the use of Nitrogen proved most successful in preventing material contamination and
FABRICATION AND ERECTION OF STRUCTURAL STEELWORK
steel-insdag.orgFABRICATION AND ERECTION OF STRUCTURAL STEELWORK Version II 41- {PAGE } 2.2.1 Shearing and cropping Sections can be cut to length or width by cropping or shearing using hydraulic shears.