德标 10BAR DIN 2576/2527/2632
德标 6BAR DIN 2573/2527/2631
日标 10K KS b1503 JIS B2220
日标 5K KS B1503 JIS B2220
PN2.5MPa(25bar)带颈对焊钢制管法兰mm
Welding neck flange HG PN4.0MPa(40bar)带颈对焊钢制管法兰mm
High pressure flangePN6.4MPa(64bar)带颈对焊钢制管法兰mm
Welding neck flange JB
Welding neck flange HG PN1.6MPa(16bar)带颈对焊钢制管法兰mm
Convex plate welding steel pipe flange
Socket flange ANSIB 16.5
Plate flat welding flange
PN1.6MPa(16压力)钢制管板式平焊法兰
英标BRITISH STANDARD BS4504 111 RFPN 16
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