cod.4171...diam.sup.80 mm. cod.172.....diam.sup.100 mm. cod.173.....diam.sup.120 mm. cod.174.....diam.sup.140 mm. cod.175.....diam.sup.180 mm. cod.176.....diam.sup.220 mm. cod.177.....diam.sup.260 mm. cod.178.....diam.sup.310 mm. cod.4179...diam.sup.420 mm.
