Saddle previously DIN2618

Saddle previously DIN2618 is the ventilation ducts ‘crotch tee’, its shaped like pants, there Equal and unequal diameter, the formal name is “tube tapered pants tee.” There is no standard size, to be based on three tube spacing center line of the front and graphic design draw graphics, Lofting produced, lofting a certain degree of difficulty. Sheet metal is engaging, steel welding.