日韩无码专区,中文弹幕日产无线码一区,中文字幕乱码人妻一区二区三区,国产大屁股视频免费区

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)