HG/T 20592  法兰盖 BL 150-63 RF

bl150a-63rf

SO 14-150 RF

BL 5"-300 ST

SO 350-150 RF

BL 4"-300 ST

SO 4"-150 RF

WN15-150 RF Sch

BL 3"-300 ST

BL 2"-300 ST

PL25-40RJ300 STRF6 RJT0 ST;-150 STm S=16δ0=8 RFB S=8F-RFWN Sc@/F8FFMRF@RF@4ذ؟ز‌ز9Sch80S0F0sc@S/2@