Mochini oa ho etsa CZ purlin o ka etsoa ka Z, ke hore mochini oa CZ purlin, o nang le boholo bo fapaneng ba 100-300mm, lihlopha tse tharo tsa ho phunya, le botenya ba thepa e tala ea 1.5-3.0mm, eo ha e le hantle e kopanang le litlhoko tsa purlins tse fapaneng maraka.kapa mochini oa C purlin feela ho tloha ho 3 inch ho isa ho 10 inch, kapa phunya masoba kapa botenya bofe ba thepa e tala.