亚洲男人天堂2022|一道本不卡视频|欧美亚洲精品日韩|高清电影免费完整版在线观看,不卡影院在线观看,汤唯电影色戒全集未删减版在线观看,电影在线观看完整版2023

Main Products
Products Grade: GCr15
Specifications: Φ5.5-30 mm
Applied Standard:  GB/T 18254
Characteristics: The product is used to produce balls and rings of bearing.
Applications: Auto Bearing steelBearing steel
Use of Products: GCr15 is a commom steel which is used to produce balls and rings of bearing. The product has characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, well-distributed carbide, good surface quality. It also has characteristics of wide scope of plastic,stable heat-treatment quality, uniformand high hardness, high wear resistance,high strength of touching fatigue. It has excellent machining property afer spheroidize annealing.