久久国产精品免费一区,国产欧美在线亚洲一区,国产福利在线观看不卡最新,久久综合av免费观看

          1. <video id="yyt2f"></video>
          2. <b id="yyt2f"></b>
            1. applications more

              • Bitumen modification use APAO
              • Hot melt adhesive and pressure sensitive adhesive use APAO
              • Sealing material use APAO
              • Polymer modification use APAO

              Office, Plant, Lab


               

               

               

               

               

               

               

               

              Laboratory reaction equipment

              Electronic balance

              Analytical instrument

              Softening point tester

              Spectrophotometer

              Deionized water equipment

              Viscosity instrument tester

              Penetration tester

              Automatic softening point tester

              Tschida production site gate