... 5.UL,SGS,ROHS,ISO9000. We can manufacture PCB in higher quality, more competitive price, quicker delivery ... RoHS Compliant)/CEM-3/CEM-1/AluminiumLayersingle layer,double layer,multi-layer(4-10)Board Thickness0.3mm ... no Open soldermask must cover all on both side, reject tin on pad Pad Open reject ... soldermask inside the hole on both side Solder Mask Thickness0.7mil,raised H≤0.05Colour ...