9. Pipe ea tšepe e se nang seamless GB / T8162-1999, nomoro ea tšepe: 10 #, 20 #, 35 #, 45 # le 16Mn (Q345), Tlhaloso: 6-720 * 1-70mm 10. Pipe ea tšepe e se nang metsi bakeng sa ho fetisa mokelikeli GB / T8163-1999, nomoro ea tšepe: 10 #, 20 #, 16Mn (Q345), Litlhaloso: 6-720 * 1-70mm 11. Tlaase-bohareng khatello ea boiler tube GB3087...
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