GB/T 12459  弯头 DN 25-345EL0 R/S=10063RF

DN 25-3 45EL0 R/S=10063RF

PL50(B)- 6 RFalopsr/-1h40 s=3.0043ch

PL80(B)-16 Fm8 h=

PL 50(B)-16 RF/@blH4.50rf-000-1.0670

47021 c-fm500-1.0/

BL125-40RF=480-0.6

WN50-300 M S=70-0SCH404=fm1RJm6 RF5

PL600(B)-16 FFJ-R9eS-RFWN S25F HsCH160105 RF�8

WN200(B