... or drum Delivery Detail: within 10days PTFE FINE POWDER DF-201 Excellent Grade A Qualified Smoothness & ... surface,fiber is average,no gravel and metalic powder,even sheet texture ≤1 for mechanical impurity(≥ ... surface,fiber is average,no gravel and metalic powder,allow 0.5mm organic Impurity. 2 Tensile Strength ... KV/MM)≤ 2.1 ----- 12 Dielectric Dissipation factor 3*10¯4 13 For check Execute according ...