material | Carbon steel |
grade, rigidity | grade 10.9 |
Coating | black oxide coating |
材料:碳钢、合金钢,等级:4.8、8.8、10.9、12.9;表面处理:发黑,公称直径:M10-M56;公称长度:50-500MM Material: carbon steel, alloy steel,Grade: 4.8,8.8,10.9,12.9; Surface treatment: black, nominal diameter: M10-M56; |