DN1200 eccentric double flange butterfly valve with gearbox EN558 series 14,EN-GJS-400-15 EN-GJS-500-7 GJS400 GJS500 NBR seal,SS316 seat
DN1200 eccentric double flange butterfly valve with gearbox EN558 series 14,EN-GJS-400-15 EN-GJS-500-7 GJS400 GJS500 NBR seal,SS316 seat
