GB/T 12459  弯头 DN 50-Sch80180ESmpampampwd=&

DN 50-Sch80 180ESmpampampwd=&

PL 45(B)-40FM FFRFam@f39CH80 RJ S4. FF Sch40β@.5 RJ R1cBh ScF@0.52.5sRF@H@R-1.6/64-1.0540 RF-1670RJ H0=150 RFRF10@WN0 RF1

PL200(B)-6RF/=12F S

WN80-150RF B=79.8

DN 150-3.5 90ES

WN500-600RF B=405 H150 RF

BL2"-600 RFT