UL style page上Covering Optional. Same as SF-1是啥意思

newren

楼主

2018-06-12 11:11:31

外被可选 same as SF-1是什么意思啊

hl5825

1 楼

2018-09-01 10:46:20

是线的屈挠分级，sf-1和sf-2不同实验标准" i, d6 f" _: i1 R8 x- ^9 [
SF-1　屈挠试验棒直径6.5mm
SF-2 屈挠试验棒直径13mm

UL style page上Covering Optional. Same as SF-1是啥意思 - 简版