Heerarka

  • ASTM A193 A193M Tilmaamaha Heerka ee Alloy-Steel iyo Steel Bolting ee Heerkulka Sare ama Adeegga Cadaadis Sare iyo Ujeedo kale oo Gaar ah
  • ASTM A320 A320M Tilmaamaha Heerka ee Alloy-Steel iyo Steel Bolting ee Adeegga Heerkulka Hoose
  • ASTM A325M-09 Tilmaamaha Heerka ee Bolts-dhismeedka, Birta, kulaylka lagu daaweeyay 830 MPa Awoodda ugu Yar
  • Tilmaamaha Heerka ASTM A563M ee Kaarboonka iyo Birta Aloyiga ah (Metric)