Level sandwich panels are not 820 type
In fact this is nothing, JXB is not the first letter of the word sandwich panels. 42-333-1000 This is the sandwich panel on the upper and lower color plate model. For example: YX28-205-820 pressure wave height of 28MM wave width 205MM effective width is 820mm a look at this model is 4 wave color plate JXB42-333-1000 can explain: sandwich board which up and down a plate of the color plate 42MM pitch 333 effective use of the width of 1000 This model can be seen is 3 wave pressure plate. Sandwich panels are made of upper and lower color plate glue (foam) combination. The composition of the bubble is different, the name is also different, there are rock wool with polyurethane and so on
