HG/T 20592  法兰盖 BL 400(B)-16 M

BL400(B)-16 M

rj250(B)-10 RF50 R

pl300-10rf00RFb)-25L100-10FMSCH4775 BB=5355Sch4

SO 500-10 FF=24 BB=

WN150-300 RFs RF

WN80B)-40 RF/mF S=40

pl800(a)-2.5rf1001�

WN15 -300 RF 904L0=

lwn40-600g h=172.5CH10SFF=35.6F60-F/S6 S6 R/50-1b)- RF

WN 25-600