IMPROVEMENT OF SPRAY GUN AND IMPROVEMENT CONCERNED WITH SPRAY GUN

摘要

PROBLEM TO BE SOLVED: To provide a plurality of spray guns used for applying one or more kinds of coating films on an article and to code the spray guns to indicate sequence to be used by the spray guns. SOLUTION: Two or more spray guns of one set to be used for applying two or more kinds of liquid coating film on the article possess a coded sequence recognizable to instruct the sequence to be used by the spray guns.