COMPANY PROFILE Shanghai Kangrui Electronics Co.,Ltd was Founded in 2002 with more than 300 current employees nowadays. With more than 30000 square meters of floor space, we are a professional manufacturer who produce metal box & covers, Distribution box,Pipe fitting ,and other cold stamping & punching products. We possess more than 200sets of punching machine & automatic precise equipment & 30+ production line with the producing capacity 500000+ pieces per day. We highlight technical innovation, consistently pushing automatic e···