1) Prensipal Steel: Q345, Q235, Q345B, Q235B elatriye.estrikti asye depo|depo prefabrike|depo asye2) Kolòn & gwo bout bwa: soude oswa cho woule H-seksyon
Kalite: Limyè asye estanda: AISI, ASTM, BS, DIN, GB, JISSètifika: ISO9001/CE EN1090Tretman andigman: plonje cho galvanize / pentire