原始聚对苯二甲酸乙酰胺原材料价格玻璃纤维填充PPA GF16%/GF35%Virgin Polyphthalamide Raw Material Price Glass Fiber Filled PPA GF16%/GF35%
原生GPPS原料/结晶聚苯乙烯GPPS/GPPS挤出级Virgin GPPS Raw Material / Crystal Polystyrene GPPS / GPPS Extrusion Grade