GB/T 12459  弯头 DN 65-Sch40S90ESB)-16

DN 65-Sch40S 90ESB)-16

wn25-150 rfb=

WN80-300 RJ

wn100 -16 rf5(b50 RF8-SO 80(A=

wn25-600rjS=9B)-16/

LWN50-300 M5rf1001æâ

WN20-300 RJu00e WN700-�گر

wn250(B)-16FM BforRF ScRF.6RF-1.0S

WN80-300RF/o20-30=4

wn100-150rfsF�¨ز�RF)-16 lFrf2(