GOST 12821-80 soude kou bride
Estanda: GOST 12821-80
Presyon: PN6, PN10, PN16, PN25, PN40, PN63
Gwosè: DN10-DN1600
Kalite: soude kou
Materyèl: CS CT20, 16Mn, SS304/304L/316/316L/duplex SS
Kouch: lwil oliv rouye-prèv; Nwa / jòn penti; galvanize; Kouch epoksidik