一区二区在线日韩电影,国产欧美日韩综合精品一区二区,日本区三区免费精品视频在线播放,亚洲成av人片天堂,国产美女久久久久高潮,国内精品一区二区三区老司机,久久一日本道色综合,色综合久久久久久久久久,免费无码不卡av一区二区,国产综合视频精品一区二区

Type

KPO3, KPO6, KPO9

 Or the type by customers’ drawings

Material

Q235-forging

ZG35-cast steel

QT500-7-cast iron

Chemical composition(%)

C:0.12-0.20, Mn:0.30-0.70, Si:≤0.3, P:≤0.045, S:≤0.045

C: ≤0.4, Mn:≤0.9, Si: ≤0.5, P:≤0.04, S:≤0.04

C:3.60-3.80, Mn:≤0.6, Si:2.50-2.90, P:≤0.08, S:≤0.025

Surface

plain (oiled)