HG/T 20592  法兰盖 BL 32-160 M

BL 32-160 M

BL 65-900 M

WN 50(A)-16 RF Sch80F5 RJ-Rb/RF�M

BL 65-160 M

WN50-40 RJgfM S@bi

SO 125-900 M00F@� RJ RFpaF��� RF Sch12.5 RJ-RГ-610R@RJs2@2500F@.5 RJ-1a086FM00S

BL 500-16 RF0 RF0O2m RF-4-RFBFSF090

WN 500-1500 T

SO 80-900 M00F@�