... m12 series certificate:ISO certificate:Certificate area:connectr cable design and manufauturesM12 4 pin male to female purple(3 pin, ... Production line:Company profile:Founded in 2009,Shenzhen Signal Electronics Co., Ltd., covers an area of 3000 sq.m,is a professional ... on customers' demands with high quality products, reasonable price and faithful service,therefore,always sell well in big cities,like ...