g i pipe roof truss
i have to provide roof truss for 6m x 6m span at height 40 feet above ground with wind speed 50 m/s. can i use g i pipes for truss?
not sure what g i pipes are. but i would think any material could be used as long as its' designed correctly.
IP卡
狗仔卡
发表于 2009-9-9 14:12:55
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡