欧洲精品乱码久久久久蜜桃,72式性无遮挡在线观看视频,夜夜操夜夜干,一区二区三区在线免费观看,色91av,欧美激情片一区二区,91cn国产在线

Use of Products: ML08Al is low carbon cold heading steel, which is mostly used for cold forming steel below class 4.8. The wire rod has characteristics of uniform-chemicalcomposition, low percentage of harmful elements, high purity, tight tolerance, good surface quality. It can be used directly for cold forming without heat treatment process and be applied in transportation, machine and transport etc.The development of the below 4.8 grade high quality cold-forming attains the first award of science and technology progress in XingTai and the third award of science and technology progress in HeBei province. The big size ML08Al is used to make T-iron of the loudhailer in JiangXi, NingBo, ShenZhen and PanYu. The T-iron is used in the foreign famous sounds of XianFeng, SONY and ShanShui.