Profile: Shandong Ruifeng Chemical Co., Ltd. is a manufacturer of PVC additives. We are certified by ISO 9001:2000 standard. Our leading products are acrylic impact modifiers, acrylic processing aids, impact modifiers MBS resin, impact modifier CPE, methyl tin mercaptide, and PVC lubricants. These products are widely used in rigid products such as PVC window & door profiles, pipes, pipe fittings, and wood-plastic composite films. PVC processing aids are used to improve PVC gelation, and fusion fluidity. Methyl tin stabilizer provides excellent retention of initial color, together with superior dynamic heat stability, weather ability, and little dosage in the applications.