1 : Gazan turbasy (ASTM A335 P5, P9, P11, P22, P91, P92 we ş.m. High Temokary temperatura hyzmaty üçin bökdençsiz ferrit ergin-polat turbasynyň standart spesifikasiýasy 2 : Çyzyk turbasy (API 5L Gr.B X42 X52 X60 X65 X70 Etc High qualityokary hilli ulag üçin ulanylýan bökdençsiz turba Nebit, bug we suw ...
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