GB/T 12459  弯头 DN 80-3180ESh 8

DN 80-3 180ESh 8

BL150-63 rj¢@470g/h-4.0/80-16 RRmpaRF02mSCH8

wN100-25rf�� mRF6RF

pl500-6t/mpampamp�ذ آ ذ²f

SO 2 1/2"-150 RFFF Sch)RF0-2.00c3

3 RF 2400-0.6 δ0Sch100 LFM Sch60h80S5RF S

PL100B-25RF b=4

1 RF 800-1.0 ذ²ز

PL15B)-