310 koyilo chubu ndi mtundu zosapanga dzimbiri koyilo koyilo chubu angagwiritsidwe ntchito mafuta feild, chitoliro koyenera, ndi zina.chida ect

kalasi ndi ASTM 310 pamwamba ndi yowala ndi yofewa ndi annealed, kutalika kungakhale 4000M/koyilo popanda welded, Liao cheng sihe zosapanga dzimbiri chuma Ltd, akhoza kutulutsa 310 koyilo chubu, kutalika akhoza mpaka 4000m/koyilo Kalasi ndi ASTM JIS 33l20l2030 ATM JIS 33l2010301 625 825 coil chubu