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	nominal size	b	d	L	w	stock no.
		mm	mm	mm	mm
	4	10	4	33	5,5	309300004
	5	12	5	39	6,5	309300005
	6	13	6	45	7,5	309300006
	7	16	7	53	8,5	309300007
	8	16	8	59	10,0	309300008
	10	20	10	70	12,0	309300010