GB/T 12459  异径三通 DN 250×250×80-Sch140TR350

DN 80×80×250-Sch140 TR350

47021 fm1100-0.6/

PL 15-16 RF=ã6 RFMjwn-10�FSpbRF10�FSpb@�5@0-

47021 rf1000-0.6/î

PL15-10FFF/M=0R

DN120-PN6 PL RF Ⅱ

PL 250(B)-10 RF sRFL00 RJSSch0Sc000.D@5J10061

so250(b)-40m80S50-600

WN 400(B)-10 FF S=10

LWN 200