Circle of steel NA , 20HN3A GOST 4543-71, 2590-2006

Circle f 70 article 20HN3A Circle f 75 article with 20HN3A Obock. Circle f 80 article 20HN3A Circle f 80 article 20HN3A Circle f 90 article 20HN3A Circle f 100 article 20HN3A Circle f 110 article 20HN3A Circle f 120 article 20HN3A Circle f 130 article 20HN3A Circle f 140 article 20HN3A with Obock. Circle f 150 article 20HN3A with Obock. Circle f 160 article 20HN3A with Obock. Circle f 170 article 20HN3A with Obock. Circle f 180 article 20HN3A Circle f 180 article 20HN3A with Obock. Circle f 190 article 20HN3A Circle f 210 article 20HN3A with Obock.

Circle f 28 article HA with t/o Circle f 30 St NA Circle f 80 article NO Circle f 90 article NO Circle f 90 article NO Circle f 100 article NO Circle f 110 article HE Circle f 110 article HE Circle f 120 article HE Circle f 130 article HE Circle f 140 article HA with Obock. Circle f 150 article NO Circle f 150 article NO t/o Circle f 160 article NO with Obock. Circle f 170 article HE Circle f 170 article HA with Obock. Circle f 180 article HE Circle f 190 article HA with Obock. Circle f 200 article NO with Obock. Circle f 210 article HA with Obock. Circle f 240 article HA with Obock. Circle f 250 article HA with t/o Circle f 260 article HA with Obock. Circle f 280 article HA with t/o Circle f 290 article HA with t/o Circle f 300 article NO with t/o Circle f 310 article HA with t/o Circle f 320 article HA with t/o Circle f 330 article HA with t/o Circle f 340 article HE Circle f 350 article HE