semi-squared or hexagonal (333.13 series), (to counter shears that generally have blades for cutting rounded profiles) case-hardened, tempered, drawn and galvanized special steel (21Mn5 UNI EN 10025-2 manganese). The chains have a 5.5 - 7 - 8 - 10 - 13 mm. wire diameter and are protected by:
- a yellow scratch-proof pvc cover (333.6 series);
- a blue fabric scratch-proof cover that minimizes its bulk (333.7 - 333.8 - 333.10 series);
- a black fabric scratch-proof cover that minimizes its bulk (333.13 series).
single box with cardboard tied to the chain, in 4 or 2 pcs. multiple box.