HG/T 20592  法兰 PL 80-6 RFп╟п■я┌б√б▒п╟п■я┌

WN 6"-900 RJ4R��F40@40.5 RJF0 R1 ff00s150r-1.6S=31=3 B1=78D=151h40Rmpampamp

pl80-6rfп╟п■я┌б√б▒п╟п■я┌

lwn40-300 fm00-4.5/5FJF80 R500-150rf5(b)-25

WN 350(B)-25 G90@b480A0Lr450-16rf s=12Sc)-165/6h6)-16rf-

PL150(A)-10FF C