求购防尘布料

Dust Proof Materials
We need constant supply for breathable/permeable dust proof fabric.
We will form into bags (with hot seal) fill with powder like materials.
The material has to be durable and moisture resistance.
Please send 1-2 yards sample for immediate testing. 
防尘布料
我们需要定期的能提供防尘绒面革的厂商。
我们将弄成袋子（有热的封条）里面充满粉末的原料
这个原料要持久的和耐湿气的能力
请寄给我们1-2码的样本让我们直接测试。