9. Pibell ddur di-dor GB / T8162-1999, rhif dur: 10 #, 20 #, 35 #, 45 # a 16Mn (Q345), Manyleb: 6-720 * 1-70mm 10. Pibell ddur di-dor ar gyfer cludo hylif GB / T8163-1999, rhif dur: 10 #, 20 #, 16Mn (Q345), Manylebau: 6-720 * 1-70mm 11. Tiwb boeler pwysedd isel-canolig GB3087...
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