Material: Q235 (Chinese steel code)
Standard:GB4004-83, JB/T8137.3-2013,DIN46391 DIN46397
Application:
1: Both sides of the flanges and the barrel separately, to facilitate the delivery of bobbin.
2:Be used for wire /cable/ steel wire /plastic tube delivery.       
Customization: Reinforced version for drum twist machine
Light version for shipping use
Knock down to be welded or to be assembled by screws to reduce transport cost 
Non-standard traverse width & barrel
Smooth internal flange surface
(Replaceable) hardened bushing of the central bore
Big or small bore
Painted or stamped weight, logo, numbering ... on flanges