GB/T 12459  弯头 DN 150-Ⅱ-Sch8090EL

DN 150-Ⅱ-Sch80 90EL

PL650-6 RF �h40ShRF5 RJcM�m2 BL RF-2

PL80(B)-16 FF b613/

SO150(B)-150 RFF0 RF16 RF/data/srcFMFM S=5.58R41048-.0@һ

LWN 50-300 RF

wn20b-10m5f52-12

WN 450(B)-16 RF S=81506 RFh10 s

WN200-150 RF Sch10020 C=22

WN400-900RFr/

SO