Dear Custom:

I am Wanhai Ding, Vice President of Smabike Co., Ltd, We value every piece of advice from you.

And please fill the form below or send a email to me at  damon@grcard.cn.

We can generally respond in less than 24 hours, but during busy periods it may take a little bit longer.

Wanhai Ding
Vice President

Smabike Co., Ltd