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2.5 metre aluminium alloy, to CNR N. 141, AASHTO T256-77
complete unit for BM560 Benkelman Beam
developed in conjunction with TRL
Recalibrate & supply with UKAS calibration certificate
BSEN 13036-7
BS 8420 type 1
BS 8420 type 1 & 3
BS 8420 for footways type 1
BS 8420 type 2