GB/T 9124.1  法兰 DN700-PN10 PL FF Ⅱ b wnFM

DN700-PN10 PL FF Ⅱb wnFM

WN25(B)-150 RF B=25(s=3)

WN65A-16RFs=-

SO450(A)-16 RF&ampampampampampampampwd=&eqid=80ebfc4e000393e300

so 20(B)-10 RF125B-40M Rj Sch4060W

BL 4"-150 RF

WN 300(B)-63 M S=11

BL40(B)-25RF0 RFRF0r/2

PL 32(B)-16 RF

WN25A-