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BRITISH STANDARD Circular flanges for pipes, valves and fittings (PN designated) — Part 3: Steel, cast iron and copper alloy flanges — Section 3.3 Specification for copper alloy and composite flanges click below BS 4504-3.3: 1989 pdf free download click here BS 4500:2009 pdf free download
BSI British Standards Limits and fits – Guidance for system of cone (taper) fits and tolerances for cones from C = 1:3 to 1:500, lengths from 6 mm to 630 mm and diameters up to 500 mm click below BS 4500:2009 pdf free download click here BS 4486:1980 pdf free download
BRITISH STANDARD Specification for Hot rolled and hot rolled and processed high tensile alloy steel bars for the prestressing of concrete click below BS 4486:1980 pdf free download click here BS 4485-4: 1996 pdf free download
BRITISH STANDARD Water cooling towers — Part 4: Code of practice for structural design and construction click below BS 4485-4: 1996 pdf free download click here BS 4484-1: 1969 pdf free download