JY020 sheet metal work enclosure for led signs outdoor 1.We manufacture all kinds of sheet metal work enclosures for led signs outdoor according to buyer's design.2.We warmly welcome you to visit our production lines, so that you will know more us better, what is more we can say hello to you face to face.3.We make by ourself metal material(SPCC, SPHC,SAIE,SAID,SGCC, SECC,AL,SUS304,SUS301,SUS430, ...