Lubrication Engineers (LE) Inc. recently launched Almamoly HD grease, a high-performance lubricant containing a special mixture of solid lubricants and...

Asymmetric thyristors (ATs) are semiconductor devices with unique structures and properties. Compared with traditional thyristors, asymmetric thyristors have higher operating...

1. Characteristics of cement concrete Advantages: ① Simple process and strong adaptability; ② Raw materials areeasily available and maintenance costs...