Are These Companies scamers ?

Paoron Technology CO., LTD
Web : www.paoron.com
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web: http://www.weixin-customized.com
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TENSUN TEK LIMITED
Web : http://tensuntek-hk.com/
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Shenzhen Max Memory Co.,Ltd
TEL：86-755-36944858
Contact Person: Ariel Lin
Email : maxstart.ariel@gmail.com
Website : www.sz-maxmemory.com
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Hong Kong RuiDaTechnology Co. Ltd
The website: http: //www.hk-ruida.com/
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shenzheng Szsoues Tech.Co.,Limited
Website: http://www.szsoues.com/
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Jiayuhua Technology Co.,Ltd.
www.jiayuhua.com
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ShenZhen Chongxing Technology Co., Ltd
Website: chongxing-factory.com
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FeiShunDe Technology co,Ltd
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HK-Langben Technology Co.,Ltd
Web: www.hk-langben.com
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Shenzhen VVelectronic Technology Co.,Ltd
web:www.vvelectronic.com
Website:szluckywing.com