GB/T 12459  弯头 DN 700-Ⅱ-1690ELS5SCH41.m21-)-/h

DN 700-Ⅱ-16 90ELS5SCH41.m21-)-/h

SO 1/2"-900 RF01lw80

wn80-100 rf s1-B0Fch8

WN 600-150RF B=578PL400 rf

PL200(B)-10 RFB)01h2

PL200-16RF6.40 RF

wn80-150rfrf-Sch459FF' SO@47023 RF��п

wn50-150rfsRF4-=46rfS66RF3h40s4F L=23 S=6r2.5ff205 T S

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