We offer professional software anti-piracy and software copy control solutions.
GDA Technologies Co.,Ltd.
Tel.: +86 10 62840610 Address : 803B, Wisdom Plaza, No.38, Xueyuannanlu, Haidian Dist., Beijing, China URL : www.sdongle.com Company email: gda@sdongle.com CEO email: mingde@sdongle.com Sales director email: linwei@sdongle.com or agnes_328@yahoo.com