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Fil de tungstène

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6 <D <18	.12-.98	-	±3	±4	?	?
18 <D <40	> .98-4.85	±2	±2.5	±3	?	?
40 <D <80	> 4.85-19.39	±1.5	±2.0	±2.5	?	?
80 <D <300	> 19.39-272.71	±1.0	±1.5	±2.0	?	?
300 <D <350	> 272.71-371.19	?	±1.0	±1.5	?	?
350 <D <500	?	?	?	?	±1.5	±2.0
500 <D <1800	?	?	?	?	±1.0	±1.5

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