preparation and casting moulding performance of expanding methyl methacrylate-styrene copolymer 苯乙烯共聚物的制備及鑄模性能
1 box shell : made of abs plastic acrylonitrile-butadiene-styrene copolymer, and has good painting . 2 box pedestal : its design is available to almost all motorcycles 大奔尾箱是美宇人繼大綿羊后自主研發(fā)設(shè)計的又一力作,現(xiàn)已獲國家外觀設(shè)計專利。