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Industry standards applicable to materials used by Proto II™

Concrete Masonry Units ASTM C 90
Reinforcing rebar and tension rods ASTM A 615
Plate washer steel ASTM A 36
Tensioning nuts - Grade 8 ASTM A 325
Direct tensioning indicator ASTM F 929 testing procedures
Joint reinforcement ASTM A 82 ladder type, 9 gage

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