久久中文字幕一区二区三区,日本99热,高清av一区,日韩狠狠操,久久久一本精品99久久精品66,1级片网站,aaaaaaa欧美黄色大片

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.