More questions about Alibaba.com

Hello, I have a problem with an order on the alibaba site. I paid for a product, according to the requirements and descriptions at the price of $ 9. Can I trust suppliers who reply to my enquiry directly in my email instead of alibaba messaging site and are not using trade asurance Can I trust suppliers who reply me in my personal email box instead of through the alibaba messaging site, and they are not using trade assurance Has anyone ordered solar power parts from this company? If so, how did it go? i want to buy laptop faily use on Alibaba is true sellers in USA Did anybody buy a food truck telegragphic tranfer of money I want to open a website with dog clothes, but I do not understand how does this work with Alibaba.com hi, how much is the delivery fee and how long does it take to get what I order? Do you do PayPal to pay?