图解： As a sourcing agent and buyer I can tell you what is a good quotation for me:it includes all relevant information ! My job is to find a reliable supplier at a reasonable price in the shortest time possible.
图解：It is very possible that I will choose a supplier whose price is a few percent higher but the quotation is complete. That means, it includes: - FOB (!!!) price, with seaport marked! (I often get FOB quotes without location. Obviously for me in Europe a FOB Shanghai price is higher than a FOB Xiamen price, since shipping rates are different). 
图解：delivery time
(so far no Chinese supplier was able to keep the promised delivery time for my projects - 90% delay, 10% early)
(so far no Chinese supplier was able to keep the promised delivery time for my projects - 90% delay, 10% early)
图解：package unit (carton details)!!!
Carton weight, size, volume, content, material. It is very important!!! Usually this point is simply left out by suppliers. But I - and most full-time buyers - have just simply no time to beg for any details separately!!! If a quotation misses this, I simply delete it. I have no time to ask for these points, but I can only calculate my shipping cost with this info!!!
Carton weight, size, volume, content, material. It is very important!!! Usually this point is simply left out by suppliers. But I - and most full-time buyers - have just simply no time to beg for any details separately!!! If a quotation misses this, I simply delete it. I have no time to ask for these points, but I can only calculate my shipping cost with this info!!!
图解：payment conditions must be exactly discussed. 
图解：I hope suppliers will consider these points in the future. If you include all relevant information, you can really help your partner in his decision. And for the supplier, it is a job done once, you needn"t work out each detail separately. (文字来源;福步外贸论坛)