Nominal diameter: DN10~DN1000mm
Pressure level: 8 levels of IOK, 16K, 20K, 30K, 40K, 63K
Flange sealing surface: 5 types: smooth surface, large convex surface, small convex surface, concave and convex surface, tongue and groove surface
Flange type: flat welding (SO), socket welding (SW), butt wel...
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