GB/T 12459  异径三通 DN 1150×1150×10-Sch20TR

DN 1150×1150×10-Sch20 TR

NB/T47023 RF600-1.6/44-105

BL 2"-300 RF

SO 500(B)-16 RF TMF1FF-6 RF6��

PL 2000(B)-10 RFc9@RfRF0@RF6 SS=)6rfТsch605 RF-25B�daq0ES

PJ/SE 50(B)-40 RF S=4

WN 80-150RF

WN65B-16RFchf0 rf-0.6ampampquoth

DN 25-Ⅱ-3.5 C