ASTM A333 ASTM A106/A53/API 5L GR.BX46, X52 Q345D, Q345E) 1. Kakaretso ea seamless pipe pipe ASTM A53 GR.B, nomoro ea tšepe: SA53 B, litlhaloso: 1/4′-28′, 13.7-7112. mm 2. Pipe ea tšepe e se nang seamless ASTM A106 GR.B bakeng sa ts'ebetso e phahameng ea mocheso, nomoro ea tšepe: SA106B, spec...
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