Design and Manufacture:DIN 87101 BS1868
Connection End Dimensions: DIN2532~2549
Butt-weld End.: ASME B 16.25
Socket-weld End: ASME B16.11
Test Standard: API598
Structure Type : Bolted, welded, Reduced bore, Full bore, lift(foged check valve),
swing(cast check valve)
good quality and reasonable price