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API 5L X55, X 60, X70 kalite muadili, yüksek mukavemetli ham petrol ve doğal gaz sondaj borusu imalatı için çelikler
Since our establishment as Dünya Demir Çelik, we have prioritized quality, speed, and reliability, offering innovative solutions to 8 different sectors. With 44 years of experience, we aim to provide our customers with the best service by integrating knowledge, technology, and professional ethics into our production processes.