Type: plywood reels
Construction:
FLANGES: plywood made of pine or birch and phenolic glue.
DRUM: wooden staves, pvc, fiber.
IRON:iron tubes high pressure pressed by
PULLING: special machine are used or normal iron rods with threaded
washers.
SIZE: great variety of sizes, ranging from mm 250 to mm 1000 (and more)
flange diameters.