HG/T 20592  法兰盖 BL 500-10 RFDrf12000-s/s/u�F.00016 rf s=0-1R10/34

BL500-10RFDrf12000-s/s/u�F.00016 rf s=0-1R10/34

PL300-6 fF100-=s=4-120Smp-s /-1Fpampamp

耳座 B3 Ro=1400323.8 H=155 f2th40S6

BL450-300 RF C=38.040F1.0 RFRF2m s=72FkF600B-16R

WN200(A)-16 RFs8-150r�©Р ТұРІвҖў

WN 32(B)-160 G S=62520δ1=10