HG/T 20592  法兰 WN 40-63 RF�� RJj@5c2@RF@443RF SCH40S6 RF&am300 STF@AFs

WN 40-63 RF�� RJj@5c2@RF@443RF SCH40S6 RF&am300 STF@AFs

WN 200(B)-16 FF S=8

WN100-40 rj450AF5@P

WN100(B)-63 RF

WN15-900 RF Sch40 rf@40@S5 R

SO 500(B)-16 RF

B BL 22"-150 RF/u0A@40@S5 RJrvle c@�200 STpa1

PL 500(B)-16 RF

B BL 22"-150 RF/