About product and suppliers:
            927 41 21 types purlin products are offered for sale by suppliers on Alibaba.com, of which steel channels accounts for 13%. 

A wide variety of 41 21 types purlin options are available to you, such as aisi, astm. You can also choose from is perforated, not perforated 41 21 types purlin, as well as from punching, bending 41 21 types purlin, and whether 41 21 types purlin is c channel, or u channel. 

There are 136 suppliers who sells 41 21 types purlin on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of 41 21 types purlin supply is 100% respectively.