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TÜRK STANDARDI TURKISH STANDARD TS 2519 Nisan 1989 ICS 93.020 1. Baskı AHŞAP İKSA HESAP,YAPIM,BAKIM SÖKÜM VE DOLGULAMA KURALLARI Flanking Strutting and Supporting Trenches,Excavations and Their Construction , Maintenance and Dismantling TÜRK STANDARDLARI ENSTİTÜSÜ Necatibey Caddesi No.112 Bakanlıklar/ANKARA
