Wall Angle:
There is a story like that: Many buyers may feel interested in some products from China, they like to cooprate with manufacturer, they want lowest price with best quality, they cost much time negotiating with many suppliers.
All the above mentioned are natural and seems usual. But maybe time is money in some way.

Nomatter the supplier are manufacturer or trading company, as they are reliable, it is will ok for one transaction.
Your feedback information will be highly appreciate!