GB/T 12459  偏心异径管 DN 400×250-5RE

DN 400×250-5 RE

PL 500-6 FFampampRF SCH16082.F Schrfrj-16 rf@.5 RJ-1a0860 LT-135Mu2.5 RJ-R�-RFSF

BL 300-25 RF Sch40

PL80B-16RFR�

bl32(b)-40 fmF)-16��FF@40hF7.5 RJ 200AF@F=3

PL12b-16RFn10F�ย16 RF B=330

WN 200(B)-10 RF S=6

BL 32-10 RF0rf

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