Multi line Bismark Chains HMF-35/2 (4.0mm – 4.4 Gr./Ft.) HMF-40/2 (4.8 mm – 6.2 Gr./Ft.) HMF-50/2 (5.5 mm – 10.1 Gr./Ft.) HMF-70/2 (8.0mm – 18.8 Gr./Ft.)