Szelep tárcsa - Pillangószelephez
Made by sand casting and machining, surface treatment KTL, material ductil iron ASTM A395 Grade 604018, different sizes DN 50, 65, 80, 100, 125, 150, 200, 250, 300, different weights 0,1kg 7,5kg, annual demands 300pcs 4.000pcs.