C is equal on both sides. Ideal for single or draped draped over a continuous range. By the end of each piece that together. And is located on the Certificate Can be welded or fastened with screws. Suitable for roof or wall-normal frame (Spanish C can not be stacked adjacent to each other)

Z is the Spanish students with one wing slightly wider than the other one. To be able to turn Lap splice overlap completely. To the  will The range is available in both single spacing. And runs continuously without the overlay. Including spacing, with a superposition of  to Z Z which the  are with the overlay. Be strong And can load up the wing and Z are 2 types of wing tip to wing tip angle is 90 degrees to 45 degrees.