GB/T 12459  弯头 DN 1000-Ⅱ-Sch4090EL

DN 1000-Ⅱ-Sch40 90EL

LWN100-150 RF H=217mp

WN25-600RFS=3ch40-

PL500(B)-16 RFf

wn100-150 rf sch1b=

3 FM1300-2.5xin50-2

BL250(B)-25Mm

wn100-300Rj68f1

so300-150rfb)-10

pl25(B)-16RfRFF61R0500 RF¦L100 RF S=80rfHF R B=RF79mp20rf wn80-30=8-4 b1=ampampam