g80起重链条参数，参照数据：
G80起重链条直径：
6mm/7mm/8mm/10mm/11mm/12mm/12.5mm/13mm/14mm/15mm/16mm/18mm/19mm/20mm/22mm/24mm/26mm/30mm/32mm/34mm/36mm/38mm/42mm,标准3倍节距和其他节距。
极限工作负荷范围：1.1-55.4T
试验载荷范围：27-1332kn
最小破断负荷范围：45.2-2200kn
6mm/7mm/8mm/10mm/11mm/12mm/12.5mm/13mm/14mm直径起重链条材质为20Mn2
15mm/16mm/18mm/19mm/20mm/22mm/24mm/26mm/30mm/32mm/34mm/36mm/38mm/42mm直径起重链条材质为20MnV
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