HG/T 20592  法兰 WN 80-63 RF S=5

WN 80(A)-63 RF S=5

47023 -fm800-1.606s6-

WN32(B)-16 FF.0RF=S=ch4022 Kf s

PL500(A)-10RF D=1010 f1=3 C0SmS= b==2m24705ï؟½S/504

BL125-150 RF

WN 400(B)-63 FF S=8

47021 M 500-1.6R4RF-0e200S-s==60c90S.

PL 20(B)-16 RFf80-90010fm3¦RF FM(B)-16 FM5RFS-1655