ASTM A333 ASTM A106/A53/API 5L GR.BX46, X52 Q345D, Q345E) 1. Pipa baja mulus tujuan umum ASTM A53 GR.B, nomer baja: SA53 B, spesifikasi: 1/4′-28′, 13.7-711.2 mm 2. Pipa baja mulus ASTM A106 GR.B kanggo operasi suhu dhuwur, nomer baja: SA106B, spec...
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