So a total of 20 Model1 and 20 Model2 are used as accessories for Ebusco to prepare for replacement. If there is a failure, 3 of them are currently known to be damaged.
So a total of 20 Model1 and 20 Model2 as accessories, given to Ebusco for replacement preparation, if there is a fault, is currently known to be 3 damage.
So a total of 20 model1 and 20 model2 are used as spare parts for ebusco to prepare for replacement. If there is a failure, three of them are known to be damaged.