色戒时长完整版,亚洲国产一区二区三区精品,久久久久久久精彩视频,怡红院av亚洲一区二区三区h,艳情五月,国产亚洲成av人在线观看导航,男女午夜免费视频

Main Products
Products Grade: G10B21-C、SAE10B35、QSAE10B35、Q10B33-C、G15B25M-C
Specifications: φ5.5-42mm
Applied Standard:  agreement
Characteristics: underpan and Interiors of automotive.
Applications: chassis parts
Use of Products: G10B21-C is a commen steel grade used for produce the parts of underpan and Interiors of automotive. uniform-chemical composition, low harmful elements, high purity, low decarburisation, good surface quality, good cold heading perfomence, low crack ratio ,wire rod have low hardness ,after annealing have good strength and hardenability. The series products of 10B21 (ordinary,XG,G and Q quality) is our advantage products ,it is famous in the domestic and all over the world.