I want to know about stainless steel pipes/ tubes wholesale markets in Guangzhou

I think there has a big Building materials & Steel markets very near around CHEBEI and CHEBEINAN， you could take metro by LINE5 to there, get off at the station of CHEBEINAN or DONGPU. These two station also OK, there have some markets, named 广州市正建装饰材料城、广州天发钢材市场、广州亿富钢材市场. Those all are wholesales markets around there, hope you will find it, thanks.