美国采购需求：空心微珠、铝硅酸盐微球、空心陶瓷微球、空心玻璃微球、玻璃泡、轻质填料

I'm interested in exploring your range of concrete fillers, and I would appreciate it if you could provide me with the FOB pricing details for these products. Additionally, it would be great to know about any bulk purchase discounts or shipping options you may offer. Also, if you have any technical specifications or product data sheets available, please share those as well. Understanding the performance characteristics and applications of your fillers would really help in making an informed decision. Looking forward to your response!