Edit norm definitions

10	DW	DUCTWORK	60	OFF	OFFSET
11	SBR	SLIDING BRANCH	61	OFF	OFFSET (ASYMM)
12	SBR	SLIDING BRANCH	62	OFF	OFFSET (ROUNDED)
13	COL	COLLAR	70	TS	TEE SYM.
15	DU	DUCT	71	TAS	TEE ASYM.
16	RINS	RND-INSULATION	72	X	X-PIECE
17	FINS	FLEX-INSULATION	73	TAS2R	TEE ASYM.
18	DWB	DUCTWORK W. BRANCH	74	X	X-PIECE
19	DUB	DUCT W. BRANCH	75	TR90	TEE-RND90
20	ELS	ELBOW SYM.	76	TR<90	TEE-RND <90
21	ELAS	ELBOW ASYM.	77	TR90C	TEE-RND90/CONICAL
22	KN	KNEE	78	TR<90	TEE-RND <90/CONICAL
23	KN	KNEE	79	TRSC	TEE-RND SYM/KONISCH
25	ELRD	ELBOW RND	80	FX	FLEX: DUCT
26	SEL	SEGMENT ELBOW	81	FX	FLEX: DUCT
27	ELA	ELBOW ANGLED	85	FAVL	FLEX. CONNECT VL
30	TRS	TRANS. RND. SYM.	86	FARL	FLEX. CONNECT RL
31	TRAS	TRANS. RND. ASYM.	90	TRR	TEE-RND/REDUCED
40	TRS	TRANSITION SYM.	91	TR45R	TEE-RND 45/REDUCED
41	TRAS	TRANSITION ASYM.	92	IS	X-PIECE SYM
42	YS	WYE	95	YS	Y-DUCT SYM
43	TRAS	TRANSITION ASYM.
44	TRB	TRANSITION BRANCH
50	TRRRD	TRANSITION RECT/RND
51	TRRRDAS	TRANSITION RECT/RND AS