ADD:Erma industry area,Chigang,Humen town,Dongguan,Guangdong,China.
Model S4015 tennis ball machine with detials:
Ball frequency:1.8-7 s/ball
Power:AC 110V/240V, DC 12V
Whatsapp & Wechat & Mobile: +86-186 1729 5454(all are 24hrs online)
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