What is FR4? FR4 is the name of a type of epoxy glazing material. fr stands for flame retardant. 4 refers to the factors that differentiate it from other materials. FR4 means two things. The material. As a construction material, it refers to epoxy laminates reinforced with ...
Multilayer PCB Up to 64 Layers; FR4 TG135/TG150/TG170; Halogen Free/CTI≥600; Aspect Ratio (Finish Hole) 28:1; Sample Expedited 8 Hours(1-2Layer); HDI PCB Blind/Buried/Hybrid Via; 5+N(N+M)+5 Structure; Trace Width/Spacing 1.6/1.6mil; Laser Hole Size(mm)≥0.075; High Density ...
The TL-4 burning furnace consists of 3 layers of cylinders. It uses fully burned natural gas to obtain high-temperature flame, and mixing this temperature with fresh air to achieve the required hot air device. Due to the use of fully automatic single-stage fire, two-stage fire ...