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: 10B18,10B21,10B28,10B30,10B33,10B33-FY,10B38,Q10B21-C、Q10B23M-C、Q10B21-DW、Q10B21-B、Q15B25M-MT、Q37MnB5、SAE10B18、SAE10B21、15B25、MnB120H、MnB123H、G33B2-B
Specifications: φ5.5~42mm
Applied Standard:  Q/XG 137
Characteristics: The products are mainly used to produce fasteners of class 8.8 ~ 12.9.
Applications: Common partsFastener steelCommon fastenerHigh strength fastenerconstruction fastener steelsteering system parts
Use of Products: 10B21,10B28,10B30,10B33 and 10B38 are mainly used to produce fasteners of class 8.8 ~12.9, It has of uniform-chemical composition, low percentage of harmful elements, high purity, slight decarburization, good surface quality, good cold heading performance, low rigidity. They also has characteristics of high intensity and good hardenability after heat treatment. 10B21 gains the gold-cup of the metallurgical product actual quality in 2008. The three steels were identified the lead level of China. 10B21 has been sold the enterprises of the east and the south of China that product the standard parts. And the steel is widely used to product fastener for auto. They have a good reflection.