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ȭƳǩǪNJ˶ǥǎȥǭƹˢǪƳǘ˶ˠǥƶƷ˟ǨǗǮǔnj˲ˠǭǢˢǖǨǓǘˢǥǖư˝Ǐǥ˿ǐưǘLj˪ǎ˲ˣǪnj˟Ǩǎ˝ˣǎ
ȭƳǩǪNJ˶ǥǎȥǭƹˢǪƳǘ˶ˠǥƶƷ˟ǨǗǮǔǫǏǏNjǥljǥǥưǮljˢnj˲ˠǭǢˢǖǨǓǘˢǥǖư˝Ǐǥ˿ǐưǘLj˪ǎ˲ˣǪnj˟Ǩǎ˝ˣǎǡǩǢǘ˝ǏưǨǘƹǨǘ˪ƷǫǏNJǪNJǥǘ˲ˠ
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ȭǡ˸ǨǢǘ˝ǏƳ˟ǖ˶ǥǥ˰ǪǛ˭ưnjǘǥǎ˰ưǡ˪ǥǗ˟ǨƶǛǧǪǥ˲ǗljǬǐǘljǮǐnj˲ˠƒƒƒȣĸěȣïńĸȰďįńîÓįȰŨŹŞŞńšűȰŹŨûšȼďŹěõû
Ǫƺ˭ǎǪƺǥǘ˪ǪǛǪƺǥǘ˪ǭǎǑǛ˰NJǕ˝Ljdž˪ǎ˲ˣNJǘƶNJǨǖǖǨNJǘDŽǨǎǫǛǧ
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ǑǛ˰NJǕ˝Ljdž˪ǪǛǪƺǥǘ˪ǘǧlj˝Ǐ
ǑǛ˰NJǕ˝Ljdž˪ǪǛǪƺǥǘ˪ǡ˸ǨǢǘ˝ǏǑˢǏǘ˰ǬǕƳ
EN 50689:2021
ƱˢǥǖǛƳǞǨǖǐǛǥljǕ˝ǗƱǥƶǪǛǪƺǥǘ˪
EN 60825-1:2014/A11:2021IEC 60825-1: 2014
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