美国采购需求：国际物流、货运代理、货运代理、门到门服务、卡车运输、综合物流

I'm interested in understanding your shipping capabilities. Specifically, do you offer shipping from the USA to China? It would be great to know about the logistics involved, including estimated shipping times and costs for various order sizes. Additionally, any insights on your experience with customs clearance and handling in China would be valuable. Knowing how you manage potential complications or delays would help in assessing the overall feasibility of working together. Looking forward to your detailed response!