GB国家标准 GB/T 3903.32-2008/ISO 20876 :2001 鞋类内底试验方法缝线撕破力 GB/T 3903.32-2008/ISO 20876 :2001.Footwear-Test methods for insoles-Resistance to stitch tear. 1范围 G... 12月30日GB/T 3903.32 阅读全文