... Standard API 5L, API 5CT, EN10217, EN10219, GB/B9711.1, GB/T9711.2, SY/T5037-2000, GB/T3091-2008 Material Q235, Q345B, API 5L ... guardrail, container framework, furniture, decoration and other related industries. Packing (1)small sizes packed by steel strips into bundles,big sizes ...