GB/T 12459  弯头 DN 500-Ⅱ-390EL

DN 500-Ⅱ-3 90EL

1 FM 600-1.6 δ0=12.25t0RJ/Fc2@RF@c2@RF@@RF@J/Fc2@R00 RFRFRh40 R5

SO 8"-150 RF

DN900-PN10 PL RF II

bi 400-f/δ1=10 b1=1

bi1600-s/u00c

PL150(B)-16 RF

SO 6"-150 RF

DN450/PN10/01A

WN 500(B)-40 RF S=185В ШўВёШўВ°Ш