HG/T 20592  法兰 PL 65(B)-100 RF4 Srf0Sw)-6 RF0@5@F

PL 65B-100 RF4 Srf0Sw)-6 RF0@5@F

sp-3d06SCm s=825n= BchSch4

WN 80-300 RF S=30r6RF)-16ذ0500 DCH400

PL 50(B)-10 M9)-e5/u00

PL64-16RFCH1

wn150b-300RFCF603/h8400-1187

WN20-160Trfb=4.5=-20=1600=180th/B)-

PL 60-6 RFJ Sch60LT RF@ RF)

BL 250-16 RF0s50-16 RF