Karfe tsarin abu ne high quality carbon karfe wanda yake daidai da kasa misali. Ana sarrafa sassan ƙarfe da masu ɗaure bisa ga "Buƙatun Fasaha da GB/T1912-2002 da Hanyoyin Gwaji na Ƙarfe-Galvanized Layer for Metal Coating Steel Production". Ciki da waje zafi galvanized karfe ya kamata saduwa da kasa misali (GB/T3091-93) bukatun na ingancin kayayyakin. Galvanized Layer yakamata ya kasance yana da daidaiton kauri, babu burar, kuma kauri na galvanized bai gaza 60um ba. Yana da masana'anta samar, da kuma kan-site taro. Babban ginshiƙin tsarin yana waldawa a kan sassa na ƙarfe da aka riga aka tsara; baya ga ƙaramin adadin kayan aiki, sauran haɗin haɗin haɗin ginin greenhouse ana shigar da su kai tsaye ta screws ko hakowa da kai da skru.