GB/T 12459  弯头 DN 20-5.5690ELF

DN 20-5.56 90ELF

WN 32(B)-16 RF/rf6 RF S=

bl100-40RFF R000c3150RF-1rfff D00/0c6/uRF5/6A=7ch/)/eASM-

WN 80-300 RF S=5 RF-16rf

BL 50(B)-25 RFF S25rf0-1.S1FF

WN 32(B)-160 FM S=5Ta=12=360آ  40sh

WN 80-300 RF SCH10S

LWN40-900 M700 H-RF-1rfff D00/0c6/uRF