汤唯色未删减版百度云资源|91视频在线免费观看|国产高清综合|国产精品呻吟av,霹雳娇娃2电影在线观看完整版免费,尺度大的未删减版的电影中国,我爱你韩国电影完整版在线观看

Main Products
Products Grade: ML20MnTiB、QML20MnTiB-C
Specifications: φ5.5～42mm
Applied Standard:  GB/T 6478
Characteristics: ML20MNTiB is mainly used to produce fasteners of class 10.9 and small size and moderate load gear and parts in cementite.
Applications: Fastener steel
Use of Products: ML20MnTiB is a common steel which is mostly used to produce fasteners of class 12.9. The product has characteristics of uniform-chemicalcomposition, low percentage of harmful elements, high purity, slight decarburization, good surface quality. After spheroidize annealing, this product has the characteristics of good cold heading properties ,stable heat-treatment properties, good hardenability and low grain-grow up tendency in cementite.