Circuit Board 6-layer gold plating pcb Layer number: 4 Materials: fr4 Board thickness: 1.6mm Surface technique: lead free hal Minimum hole size: 0.20mm Minimum line/space: 0.12mm/0.12mm Ink: taiyo Thermal temperature: 288 c. Degree We are always ready to serve you with professional technological support, steady products and satisfied products and perfect customer service Fob price: fob shenzhen, hongkong Port: shenzhen, hongkong port Payment terms: l/c, d/p, t/t, western union (negotiable) Minimum order quantity: 200 piece/pieces Delivery time: quick delivery Place of origin: china guangdong Brand name: cirket Certification: rohs, ul, iso9001:2000, iso14001, Package: inner packing : vacuum airbag Outer packing: standard carton packing.