Standardî

  • ASTM A193 A193M Specification Standard ji bo Alloy-Steel û meshgalvanized Boltendahl bo tîna bilind de an Service tansiyona bilind û Other & Derivatives
  • ASTM A320 A320M Specification Standard ji bo Alloy-Steel û meshgalvanized Boltendahl bo Service Low-: Germahiya
  • ASTM A325M-09 Specification Standard ji bo binyadî Bolts, Steel, Heat dermankirin 830 mpa Siparîşa kişişî
  • ASTM A563M Specification Standard ji bo Carbon û Alloy Nuts Steel (Metric)