NB/T 47065.1  支座 BⅡ 32557

BII 32557

WN150-300 RFch400-25FMRF/500rf

so 40-600fm D=170  B=40

3 B9032

LWN50-300 RF Sch406rf-300 RF

WN 3 1/2"-150 RF Sch40

3 B2143

BL 2"-150 RF

BI 1700 h=250510/60h80)5/c

DN20/PN25/21BM00AF5@�66 RF48823 Sch4040 Sch781078��� rf@ch