GB/T 12459  弯头 DN 65-Sch40S90ESB)-16 RF6 RFS=3

DN 65-Sch40S 90ESB)-16 RF6 RFS=3

WN300B-300RF S=10 s

LWN 80-900 FM Sch80pas=140RF40-F5,250RF/-10fff0-1s25

LF/SE125-600 RFm 400-

PL25(B)-2.5 RFF2-1.5ch80sc8/fS00.6=S

SO 65(B)-16 FFpampampah8

A WN 38"-600 RF B=3ЎmpampamR

Pl250-10rf106p

WN65-25