欧美人在线一区二区三区,日韩欧美在线看,国产欧美二区,国产在线视频二区,亚洲欧洲国产视频,欧美日韩在线免费看,在线看片一区

In the R&D center, we equip with all facilities necessary for the research and product development, these equipment include: various chemical, optical and physical measuring instrument, two roll mills, brabenders, lab extruders, congo red test machine, all sorts of mixers, ovens, all sorts of instruments for test of raw material property and performance etc..