GB/T 12459  弯头 DN 150-Ⅱ-490ES18f h=4400

DN 150-Ⅱ-4 90ES18f h=4400

wn500-300ff smpampampampampamp

BL80(B)-16 RFF5

WN 3"-150 RF

WN 10-2500 Tkerser3h800h106

PL40(B)-16 RFw0F4WN800

20615 BL500-900 RJcF�RF Sc�¶(

DN 650×650×10-Sch40 TR

PL350(A)-16 RF b/=330 C=18 B=34=/ s=1

SO65-150