Series tiêu chuẩn giàn giáo BS1139 hiện có

Series tiêu chuẩn giàn giáo BS1139 hiện có

BS 1139:Part 1/BSEN 39:2001	Tubes/ Lasons steel tubes for tube & scaffolding couplers scaffold.
BS 1139:Part 1:Section 1.1	Specification for steel tube.
BS 1139:Part 2:Section 2.1	Specification for steel couplers, loose spigots and base-plates for use in working scaffolds and falsework made of steel tubes Identification with EN 74)
BS 1139:Part 2:Section 2.2	Specification for steel and aluminum couplers, fittings and accessories for use in tulnilar scaffolding.
BS 1139:Part 3	Specification for prefabricated access and working towers.
BS 1139:Part 4	Specification for prefabricated steel split heads and trestles.
BS 1139:Part 5	Specification for materials, dimensions, design loads and safety requirements for service and working scaffolds made of prefabricated elements.