NB/T 47022  法兰 RF 1000-1.6 п╟п

2 RF 1000-1.6 п╟п

wn80-25rf s=10.5 Б─■п÷п╡п╕п═Б─⌠п║п╡п≤п╙п╡п╕п║Б─⌠я п╡п╕п╒Б─⌠п║

47021 RF 700-0.250R(RFHG/T216rf sch11

WN400-10RF(616FRF Sch4e150-4ervletM0025RF9RFu0

so50-10rfhg/

wn