Double-sided aluminium PCB with HASL 1.The board is good quality. 2.we offer ... a best price 3.the delivery is quickly ZXH PCB simple profileBoard material:imported from Taiwan ,made- in-china,NEC ... PlatingSolder mask color:white ,black,yellow,red,green ,blueProfiling:Punching,Routing,V-CUTCertificates:ISO9001:2000,ISO14001:2004,UL certification,SGS,ROHS ...