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... Metallic element Content Pole shafts,cross arms&bolted on accessories ASTM A123/ A123M-15 AS/ NZS 4680 >6 85 Mn 0.25%-0.40% <3-6 70 1.5-3 55 Cu <0.15% <1.5 55 Bolts,nuts&washers GB/T 5267.3-2008 _____ ≥ 54 P <0.025% (ISO 10684-2004) Foundation bolts ASTM......