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ASTM A53 BS1387 Galv Karbon Çelik Boru DIN 2440 ASTM A53 ASTM A7952023-11-20 13:40:08 |
JIS B 2312 SUS316L BUTT KAYNAK FİTTİNGİNG, BV MOD II, GEMİ BİNASI UYGULAMASI2020-06-02 17:33:10 |