The （） of the semi-built method of the construction crankshaft is that by making the two webs and crankpin from a single forging the grain flow in the steel follows the web round into the crankpin and back down the other web.<br>A:advantages<br>B:disadvantages<br>C:power advantages<br>D:power disadvantages

The （） of the semi-built method of the construction crankshaft is that by making the two webs and crankpin from a single forging the grain flow in the steel follows the web round into the crankpin and back down the other web.
A:advantages
B:disadvantages
C:power advantages
D:power disadvantages

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