AC Blowing Agent, Expandable Microsphere, Azodicarbonamide manufacturer / supplier in China, offering PVC Compound Granule PVC Chemical Additive Package for Ultralight PVC Shoe Footware Soles Density 0.3-0.5, PVC Compound Granule PVC Chemical Additive Package Used for Super Light PVC Shoe Material Density 0.3-0.5, Density 0.3-0.5 PVC Compound Granule and Powder PVC Chemical Additive Package for Ultralight PVC Shoe Soles and so on.