供应PA66 70G33HS1-L 70G13HS1-L 70G43HSL原料
供应杜邦PA66 70G43L 70G33L 70G13L原料
供应PA6加纤GF10%,GF15%,GF20%,GF25%,GF30%本色黑色
供应PA66加纤防火本色黑色
供应日本宇部PA6 1013B 1015B 1022B 1030B