... 4) Frequency: 510-410 Hz, +/-20 Hz HTAP Auto Parts Co., Ltd., was established in 1998, specializes in production of car horn ... Middle East and Japan, and received high appreciation from auto parts dealers for its superior quality, good service and ... business relationship and international friendship. Company Name: China HTAP Auto PArts Co.LtdAdd.: No.86 Jianshan Industrial Zone, Ditang Town, Yuyao ...