短語詞組短語Metal Pall Ring 金屬鮑爾環(huán)填料;蜂窩陶瓷金屬鮑爾環(huán)填料plastic pall ring 塑料鮑爾環(huán)填料PTFE pall ring 四氟鮑爾環(huán)Pall ring packing 碳鋼鮑爾環(huán)填料Ceramic pall ring 鮑爾環(huán)Four Fluorine Pall Ring 四氟鮑爾環(huán)填料polypropylene pall ring packing 聚丙烯鮑爾環(huán)填料 返回 Pall ring