题目内容
(请给出正确答案)
[主观题]
15 Nodular cast iron
提问人:网友yangsong121
发布时间:2022-01-07
A.Black
B.Yellow
C.Ductile
D.Malleable
The following image is a photomicrograph of .
A、grey cast iron
B、pig iron
C、white cast iron
D、wrought iron
Which is the most like cast iron?
A、A
B、B
C、C
D、none
Cast iron carrier rings, _____ machined grooves, are provided for all the pistons.
A.caulked into
B.caulking into
C.pressed into
D.screwed into
A、carbon steel
B、alloy steel
C、cast iron
D、tool carbon steel
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