PPA原料PPA塑料粒子PPA工程塑料PPASolvaySolvayAMODELPPA上海现货，***运输AMODELPPAA-4122NLWH905（PPA4122和4122）SolvaySolvayAMODELPPAA-4122NLWH905，适合LED部件。上海现货，***运输AMODELPPAA-1340HS（PPA1340和1340）Solvay适合LED部件（微动开关专用尼龙）上海现货，***运输AMODELPPAA-1240L（PPA1240和1240）Solvay适合LED部件上海现货，***运输AMODELPPAA-1945HSNTSolvay适合LED部件上海现货，***运输AMODELPPAA-4145HSNTSolvay适合LED部件上海现货，***运输PPA原料PPA塑料粒子PPA工程塑料)