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King MASH Composite Blocks® are injection molded guardrail offset blocks composed of Recycled High Density Polyethylene (HDPE) and tested to AASHTO’s MASH, 2nd Edition (2016), Test Level 3 specifications. The King MASH Composite Block is offered as an alternative to 12″ (305 mm) depth wood blocks on W-Beam guardrail systems, utilizing standard W6x8.5# / 9# (W150x12.6 kg / 13.5 kg) steel posts.
12″ King MASH Block
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