GB/T 12459  弯头 DN 50-Sch4090ELSc2@RF@443RF@A

DN50-Sch40 90ELSc2@RF@443RF@A

WN25(a)-40 RF

WN300-300RF B=292

a wn800-150 rf s=16

WN250-63 RF S=7

47021 C-RF 1500-0.25 S8 b=1s/@F-S5+ط¢آ @b0@RH

LWN 40-300 RF B=34 L1=20=6RF

so150-150 ff c=24

pl500-2.5 rf

LWN 6"-300 RF B=B=430@pl6 RF-150pampa