標(biāo)題: ASTM A 417-1993之字形方形正弦形家具用彈簧元件用冷拔鋼絲 [打印本頁(yè)] 作者: 兌水 時(shí)間: 2009-9-6 20:32 標(biāo)題: ASTM A 417-1993之字形方形正弦形家具用彈簧元件用冷拔鋼絲 A417-93(2004) Standard Specification for Steel Wire, Cold-Drawn, for Zig-Zag, Square-Formed, and Sinuous-Type Upholstery Spring Units