F 2O o ore pool
Publish: 2021-04-19 11:13:24
1. BYD song Pro engine number is f2o15978, is a code. Hope to adopt
2. C25 refers to the compressive strength grade of concrete test block, which is 25MPa; F200 is the freeze-thaw grade of concrete, which can withstand 200 freeze-thaw times. It should be.
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