GB/T 12459  弯头 DN 500-Sch10S90ES4RFпҝҪ2B

DN 500-Sch10S 90ES4RFпҝҪ2B

PL 50(B)-10 fF D=125-116R

wn25(b)-16 rf 10/u00

wn150-150ff hg100./Ff=350 RF=去=20M0(B)-16F12r24-8 RC6R

BL 40-40 RF1/f30)-1RF20-102/

WN 20-10 RFmpampampj100 rfRF

WN25-63 mF0)-FCH80F36 RFS=6RF S=00 RFFM S=6N

wn950-150rf =