hi,david, I know well Alibaba.com, I think nowdays they are the biggest B2B website , how to say, there are good supplier and of course scammers, you have to tell them. There are three types suppliers: manufacturer, trading company, trading &manufacturer. in general, manufacturer is reliable, but also some trading company also pretend manufacturer, it is hard to tell, my suggestions to you below: firstly, they have to registered Gold supplier, because for this suppliers, they have to register with their chinese license; secondly, sometimes, it is hard to tell them, so the finally way is that you place a trial order firstly, during this order, you can know much about their ability, service, shipping etc, after you confirm, you can place your big order; thridly, there is basic way, the people who contact with you , must have good skilled of english, because most good factories , will hire
experience workers , better to know two kind of languages, the small factories, they don't have much money to hire experience man to work for them. hope I can help you .