Carbon fiber pole,carbon fiber square rod,carbon fiber profile ,light weight ,high ... , REACH , 6P TEST, ISO 9001:2000 CompliantCarbon Fiber,Carbon Fiber Pole,Carbon Fiber Rod,Carbon Fiber Tube, Carbon Fiber Tripods,Carbon ... custom products design*Diameter ( mm )Diameter ( inch )0.5.0190.6.0230.8.0311.0.0391.5 .059 1.8 .071 ... 4.5 .177 5.0 .197 5.5 .217 6.0 .236 6.9 .272 7.9 .311 8.0.3158.5 ...