WN High-neck flange

Process: (Forging)
Sizes: 1/2" - 40" (DN15 - DN1000)
Standards: GB9112-9131, SH3406;
ANSI B16.5, B16.47
Materials: 304, 304L, 304H, 316, 316L, 321, 321H, 347, 347H, 316H, 310S(2520), etc .