... 45mm 3.density:90-6000g/m2 wear-resisting,heat-retaining mattress felt1. It is made of cotton,polyester and PP2. ... needle puncturing to achieve thickness and then enter the main machine,finaly is automatically cut and form a rollCharacteristicAnti-static, ... proof,cold-proof,filter,Useshoes,insole,insiden lining of boot;Mattress ,cold-proof tent,vegetable awningPaymentT/TDelivery datedepending on the ...