Dear Sir or Madam, Wish you a nice day! I am Lily, sales from Shenzhen Yongxinya Technology Co., Ltd. It’s my honor to take this opportunity to introduce our company and our products to you. Our company is a professional manufacturer of all kinds PCB , such as single side board , double sides boards and multi-layer boards, FPC and related moulds , We can manufacture PCB by your requires and layout, and the price is relatively competitive. 1)Our manufacturing capabilities : A. Maximum Number 20 layers B. Minimum and Maximum material 0.2mm-4mm C. Minimum and Maximum copper thickness 0.5oz-4oz D. minimum hole size 0.2mm E. Minimum track width 0.1mm and 0.075mm F. Minimum track to track gap 0.1mm 2)Surface finish : A. OSP B. Immersion Gold C. Immersion Tin D. Selective Gold E. Silver Through hole/jumper F. Carbon Through hole/jumper G. Peel able masking We make PCB based on Gerber File, if you have any inquiry pls feel free to contact me and I will do my utmost to meet your requirements. Best regards & thank you Lily</p>