GB/T 12459  管帽 DN 580-Sch160CH=1

DN 580-Sch160 CH=1

LWN 20-150 RF H=300

WN150-1500 RJ Sch160 h

WN 25-1500 RF S=

WN 25-300 RF Sch80S06 sch80Fb)-22-2

47065.4 A100-541 b A/33026/0-15. B=217S

PL300-150RFH80.40s RF61628F S=8

wn40(B)-63 RF

WN125(B)-16 RF d=186 S=674 S=400fmS=4.5C=

DN150-