double sided pcb for energy storage

{"cid":"91224204","title":"Custom 2 Layer PCB FR-4 1oz Copper Gold Fingers for Energy Storage with HASL\/ENIG Option","imgUrl":"https:\/\/img.chinax.com\/nimg\/26\/1c\/2c8899b3775d7737e9e56f4b548b-200x200-1.jpg","attrs":{"Price":"Based On Gerber","Brand Name":"Xingqiang","Model Number":"As Per Customer's Model","Minimum Order Quantity":"Sample,1 Pc(5 Square Meters)","Delivery Time":"NA","Place Of Origin":"China","Certification":"ISO 9001 \/ ROHS \/UL \/ IATF 16949 (automotive)","Packaging Details":"As Per Customer's Request","Payment Terms":",T\/T,Western Union","Supply Ability":"100000\u33a1\/Month","Product Name":"Custom Doubled Sided PCB","Samples":"Yes","Materials":"FR4","Mini Holes":"0.1mm","Copper Overall":"0.5-5oz","Routing":"+\/-0.1mm","PCB Counts":"1-30 Layers","Test":"100% E-Test","Treatment Finished":"Immersion Gold","Characteristic Service":"ODM\/OEM\/PCBA","Quotation Document":"Gerber Files Or BOM List","Regular Board Thickness":"1.6\/1.2\/1.0\/0.8mm,2.0\/0.6\/0.4\/0.2mm(Special)"}}