... Customers:Pepsi, Walmart, TOYOTA ,Matsushita Electric Industrial Co., Ltd and the OEM manufacturer of Seiketsu Network Co., Ltd in Japan. etc ... hotline: 86-0592-3220099 1.we will let you know the whole process: making sample ,post sample,producing,packing , shipping etc. 2 ... .In the event of a problem, you can take photos for us ...