NB/T 47065.2  支腿 a4-2or20/J

2 a42or20/J

47023rf1900-1.6000-1.0F8

wn500-600rja=519ГӮb=4

SO 200(B)-25 FM -0.6 RF

lwn50-900 m0

nb/t47021 fm 400-1.60-1.0150S=41-6 R05=≥8=12pa

BII 1600-F/25-40 rf hg/forum.html

BI 356MF6m059wn2400/ BB/mnh100=108d=

pl 100(b)-6 rfCH40/rj0

pl350-6rf