精密多圈线绕电位器 WX2.5-1 100K绕线单圈电位器 WX100-1K WX100-2.2K WX100-4.7K WX100-10K 10W WX100-1K，WX100-2K2，WX100-4K7，WX100-10K，WX100-22K，WX100-47K WX100 10W电位器 WX2.5-1-1K WX2.5-1-2.2K WX2.5-1-3.3K WX2.5-1-4.7K WX2.5-1-10K WX2.5-1-22K WX2.5-1-33K WX2.5-1-47K WX2.5-1-100K