cem 1 double sided pcb assembly process

{"cid":"91223644","title":"Driver CEM-1 Through Hole Double Sided PCB Board Assembly OEM","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/9c\/52ce964f6afc7182a1a49906761c-200x200-1.jpg","attrs":{"Price":"Contact us","Minimum Order Quantity":"1","Delivery Time":"5-30 days","Certification":"ISO, UL, IPC, Reach","Place of Origin":"China","Payment Terms":"T\/T","Layer":"20Layer","Material":"FR4","Board Thickness":"0.2-10mm","Surface Finish":"ENIG","Pin Space":"0.25mm","Application":"Driver"}}

{"cid":"91218099","title":"Double Single Sided Pcb Design Assembled Printed Circuit Board Assy","imgUrl":"https:\/\/img.chinax.com\/nimg\/74\/31\/4db6cfcbd96a0541ee0a7cfe220a-200x200-1.jpg","attrs":{"Price":"USD0.01~0.1\/dot","Brand Name":"kerongda","Model Number":"KRD-PCB-S05","Minimum Order Quantity":"1k","Delivery Time":"15 days","Certification":"CE","Place of Origin":"Qingdao China","Payment Terms":"L\/C, T\/T","Supply Ability":"40000dot\/h","Packaging Details":"Standard packet","Board thickness":"1.6mm, 0.5~3.2mm, 0.2-3.0mm, 0.3~2.5mm, 2.0m","Copper thickness":"1oz,0.5-2.0 oz,1-3oz,0.5-5oz,0.5-4oz","Base material":"FR-4, CEM-3, Aluminum, CEM-1 OR FR-4, alum","Application":"Electronics Device, Consumer Electronics, Electronical products, Industrial, and so on","Color":"Green, Customized Color, Blue on your request","Standards":"IPC-A-610 E Class II-III, IPC 6021 Class 2, TDR testing, ISO 9001, Class 3","Min. line width":"3mi, 4mil, 0.1mm, 0.1mm(Flash Gold)\/0.15mm(HASL), 0.1 0mm","Min. hole size":"0.25mm, 0.1mm, 0.2 mm, 0.15-0.2mm, 0.1mm-1mm"}}