修改信用证条款，英语怎么说？

Please amend the term of L/C, "PLATE AND CHEMICAL FOR PRINTING" to "PLATE AND BLACKET FOR PRINTING". Because it is very difficult for us to book the shipping space if we mark CHEMICAL on the documents.

Pls amend the terms of the L/C, changing "PLATE AND CHEMICAL FOR PRINTING" to "PLATE AND BLANKET FOR PRINTING", since the former makes it hard for us to book shipping space.

PLease amend the article of the L/C from "PLATE AND CHEMICAL FOR PRINTING" to "PLATE AND BLANKET FOR PRINTING" because the appearance of "CHMEICAL" in the L/C will make it difficult for us to book a ship.

Please modify the terms of the letter of credit, and PLATE AND CHEMICAL FOR PRINTING changed PLATE AND BLANKET FOR PRINTING, because the show is hard for us to set CHMEICAL ship.