Something could be wrong in production. We are talking about silkscreen printing and assembly.br br For silkscreen printing, here are some of the issues.br 1. Patternbr 2. Printing accuracybr 3. Materials and equipmentbr 4. Othersbr br What about manual assembly?br br 1. Materialbr 2. Production processbr 3. Detailsbr 4. Environmental issuesbr br www.jrpanel.