Friendly and Super helpful. This was my first order with cvvtch and l am extremely satisfied. My contact Serena was helpful and courteous and responded in a very reasonable time frame considering the 6-hour difference in time zone. The product l had custom-designed from scratch was exactly what l was expecting and at a fair cost.

Very professional manufacturer! Friendly and patient reply and solve every problem I have, and will provide pictures and video explanations, and will hold a video conference with us to discuss the details. I have received the sample, which meets our customization needs very well. Thank you.

We tested today and the bottle can withstand more pressure than the ones we were using. It heats up very quickly, we also tested it by charging it for a week and everything worked fine. The quality is very good.

Danke, ich habe das Gefühl, einen Partner zu haben, dem wir vertrauen können. Jemand, der unsere Bedürfnisse versteht und hart daran arbeitet, unser Wohl im Auge zu behalten. Ich freue mich auf unsere weitere Zusammenarbeit.

非常に効率的かつ有能な方法で私たちをサポートしていただき、ありがとうございます

I check several Chinese company, some has more flavor, but I didn’t continue to talk with them,Because I like your service.