Baiyun International Airport - Luggage Storage - Maximum Period

Hi

I will be heading to Guangzhou later this year for an extended period on business, then heading to Northern China for Stage 2 of my trip. I have stored luggage at Baiyun Airport before for up to one week, without any problem. However, this time I may need to store at least one large bag for 6 weeks. Is this possible, or does it exceed the maximum allowable period set by airport authorities? Thanks in advance.

Warm Regards
Geoffrey