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+7 (3439) 29-75-02
+7 (3439) 29-75-30
" " : 10705, 20295, API 5L, API 5CT, ASTM A53, EN 10219, EN 10217, EN 10208, d 114 - 630 , 3-22 . 30245, 25577, EN 10219 8080 500500, 3-22.
API 5CT , PSL 1, ISO 11960:2004, 53366 - 2009, d 146,1-323,9 , 5.87-16.5 .
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