国产精品久久久久久久久久免费动|久久久久免费精品国产|日日夜精品视频|黄色av地址,婷婷激情久久,亚洲美女高潮久久久,超碰在线三级

Main Products
Products Grade: ML35
Specifications: φ5.5~42mm
Applied Standard:  GB/T 6478
Characteristics: The wire rod of ML35 is mainly for the manufacture of fasteners of class 8.8.
Applications: Common partsCommon fastener
Use of Products: ML35,which have the characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, slight decarburisation, good surface quality,are commen steel grade for manufacturing fasteners of class 8.8. After spheroidize annealing, this product has characteristics of good cold heading properties ,stable heat-treatment properties, good hardenability and applied in the fields of automobile and mechanic and so on.