Babies and children wholesalers in Shenzhen

You can go to Xinbeima Market in Lixin Rd 13, Luohu District, but it’s not a special children clothing market.
I happen to know there is one in Guangzhou, Litang Building Wholesale Kids Market, which is in 50 Zhongshan 8 Rd, Liwan District.
You can take a bullet train from SZ Station to Guangzhou East, which may take 1h 20 minutes and CNY99.5 for a first class seat, CNY79.5 for a second one.
After you get there, you can take bus 233 directly to Zhongshan 8 Rd, or you can take a taxi there, which takes about 15 minutes and CNY30-40.