The consumer fulfillment is our primary goal. We uphold a consistent level of professionalism, top quality, credibility and service for Low MOQ for Best Quality High Power Aluminum Led Round PCB 220V, PCB Board 3W, We invites both you and your enterprise to thrive along with us and share a vibrant long term in global sector.
The consumer fulfillment is our primary goal. We uphold a consistent level of professionalism, top quality, credibility and service for , Now the competition in this field is very fierce; but we’ll still offer best quality, reasonable price and most considerate service in an endeavor to achieve win-win goal. “Change for the better!” is our slogan, which means “A better world is before us, so let’s enjoy it!” Change for the better! Are you ready?
The production method of 2 Layer PCB is generally made by inner layer pattern first, and then made into single or double side substrate by printing etching method, which is incorporated into the specified layer, and then heated, pressurized and glued. As for the subsequent drilling, it is the same as the plating through hole method of double panel. These basic manufacturing methods have not changed much since the 1960s, but as materials and process techniques (e.g., pressing and bonding techniques, improvements to the glue residue produced by drilling, film) have matured, the properties attached to the multilayer have become more diverse.
1、Summary of matters needing attention in circuit board welding