Carbon fiber pole,carbon fiber square rod,carbon fiber profile ,light weight ,high strength RoHS , REACH , ... Fiber Rods/Tubes ( outer dia. from 0.5mm to 25.4 mm), square tubes, rectangular tubes, CRP profiles ,etc. Our Carbon Fiber ... 2.8 .110 3.0 .118 3.5 .138 4.0 .157 4.5 .177 5.0 .197 5.5 .217 6 ...