Lucia Tou @UCF3nDUiChYZG8Mui7BWt0lQ@youtube.com
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This is Lucia, we are manufacture for pH EC TDS ORP Salinity Suscribe Rss feed
This is Lucia, we are manufacture for pH EC TDS ORP Salinity meter, do meter and other water quality tester since 2009, wiil show our device wroking video, factory video. Welcome to order.