HG/T 20592  法兰盖 BL 450-10 RFd3 9

bl450-10rfd3 9

WN25(B)-16 M

SO200-150 M1682000-1.6

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