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Page 1: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 2: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 3: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 4: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 5: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 6: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 7: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 8: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 9: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 10: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 11: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 12: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 13: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 14: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery
Page 15: file.yizimg.comfile.yizimg.com/175706/2012092012232652.pdf · ICS 77. 140.75 H 48 2008-05-13 GB/T 3091—2008 GB/T 3091—2001 Welded steel pipes for low pressure liquid delivery