PVC RESIN SG5 K66-68 HIGH QUALITY BEST PRICE : PVC RESIN:ShanDongHaiHua Specification Descriptions: 1>. ... shape: white powder 2>. K value: 66-68 3>. Packing: packing in a kraft paper bag , lined with ... Celsius, 10 minutes),% ≥78GB/T 15595-95 K value 66-68 Increased viscosity 0.355-0.380