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183 . 477

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, 16971-71   117




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16971-71


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25 1970 . ( 233)

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14 1971 . 931

, . Welded joints of Plasticized PVC, unplasticized PVC and polyethylene. Quality control methods. Total requirements 16971-71
 

14/V 1971 . 931

1/1 1972 .

 : 13.  : , 1.1. ..
page speed (0.0442 sec, direct)