GB/T 12459  弯头 DN 80-690ESfined�-4.@��datF8rf50 RFS5 RJ2A

DN 80-6 90ESfined�-4.@��datF8rf50 RFS5 RJ2A

PL 350(B)-10 RF

SO 4"-150 RF

wn 750-150 RF

WN250(B)-16 RF

WN 50(B)-160 RJ S=3.5

pl65(b)-10RF-4.00015RF@RF40S01Scsp5 RJF/2@-

WN250-300 RF B=252

SO 3"-150 RF

pl80(B)-16 RFTMmb1�1@1S540-150 R