Ultramid A3WG3 BK00564 可耐热性PA66料 ¥41.00 Ultramid A3WG4 德国Basf原材料 ¥41.00 Ultramid A3WG5 BK00564 耐热性PA66料 ¥41.00 聚酰胺PA66料 Ultramid A3WG5 ¥38.00 Ultramid A3WG6 HRX 可耐温级PA66料 ¥41.00 Ultramid A3WG6 一定刚性PA66料 ¥41.00