GB/T 12459  等径四通 DN 25-Ⅱ-Sch40SCRS

DN 25-Ⅱ-Sch40S CRS

so25-150rfsch40fR=вүҘ6-300 RF Sch8040CH8060RF

DN 50×32-Ⅱ-4 RC

SO25-150 RF-0F hg/F-0-16RF190pa

WN 250(B)-25 RF S=8.83p-1@P RFtQРІТ–ТЎР“У® rf-=78

WN50(B)-40M S=500-4

BL25-300RF(b)-16rf0/

BL 15(B)-40 Mah4

WN40-25R