... OutlineNo matter what processing way is adopted in PVC products processing, PVC compound must be perfectly blent at first, only ... used and added in rigid PVC products such as PVC profile, PVC pipe, PVC sheet, PVC fitting, PVC board and other transparent PVC products.Recommendation dosage1-3phr ... { 'aImgSrc': aBigImageSrc } ); } )(); Acrylic processing aid additives HL-225 for PVC profile good quality