DUPONT-Crastin® PBT热塑性聚酯树脂 BM6450XD,6129C,6C,ST820,HTI668FR,LW685FR,LW9020FR,LW9030FR,S660FR,T835FRUV,T841FR,T843FR,LW9020,LW9030,LW9320,LW9330,SO653,S600LF,CE2548,T803,T805,CE2055,CE2056,S600F10,S600F20,S600F40,S610SF,S620F20,HR5315HF,HR5330HF,SK601,SK602,SK603,SK605,SK608,SK609,SK612SF,SK615SF,ST830FR,ST830FRUV,T845FR