Buy high permeability manganese-core ring

Ring of high permeability manganese core spray green, we need 9 * 5 * 3 lap more than a sense of volume 6UH,, UU9.8 sense than the amount of 3.5UH 20 * 10 * 10 laps with a sense of volume 10UH price advantage over Guangdong Zou Sheng, please contact the manufacturer directly,