PRODUCTS SERIES d(mm) D(mm) B(mm) Approx.Mass(kg) 6300 10 35 11 0.051 6301 12 37 12 0.060 6302 15 42 13 0.083 6303 17 47 14 0.113 6304 20 52 15 0.145 6305 25 62 17 0.235 6306 30 72 19 0.345 6307 35 80 21 0.464 6308 40 90 23 0.635 6309 45 100 25 0.829 6310 50 110 27 1.060 6311 55 120 29 1.370 6312 60 130 31 1.72 6313 65 140 33 2.110 6314 70 150 35 2.570 6315 75 160 37 3.080* As for our company and products list, you can see our website: *If you have any need on our products,please dont hesitate to contact us. *Tel:++86-592-5666562 *Fax:++86-592-5666563 *Website: