I don't know if you want us to help you translate this sentence into english in order you can understand it but, since there are two people who have explained the sentence putting others words in spanish, I've tried to translate the sentence into english, maybe it's what you need. I hope to be able to help you because my English skills is no very high.
"These products will not be ready because the manufacturing process takes time. The manufacturing process has made a mistake regarding the delivery date".