More Technologies Limited: 1-5 day turnaround lead time. Rogers, Megtron, High Tg, Neclo laminates in stock. High frequency circuit board manufacturer in China, no minimum lot requirements on orders. More technologies provides high-quality quick-turn PCB at affordable prices, to hobbyists and engineers all over the world. Ultra-low transmissionloss highly heat resistant multi-layer circuit board materials. Megtron 6, features: low Dk=3.6, Df=0.002, low thermal expansion low Z-CTE=45ppm/c.