NB/T 47021  法兰 RF 1100-0.25ƒ6mn/b

47021 rf1100-0.25-ƒ6mn/b

PJ/RJ 50(B)-25 RF′、

47023 M800-1.6/孔1F00b)-150RF.6 δ=

3 RF 700-1.6 δ0=

WN50-150 RF S

WN 1 1/2"-2500 RJ S=x-25 G/cRF B=64182/u00ac/16/tyuR

PL65(b)-16RFF=50)0.1f f S=3.2F80016Sch805Fh40b4 R0s

SO 65(B)-16 FM

WN900