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 燃油管应用PA66料 Ultramid A3WG7 BK00564 ¥37.00 可耐低温PA66料 Ultramid A3WG7 CR BK564 ¥40.00