CBT-65 is the most protective blade type and the most widely used. The “CBT” stands for “Concertina Barbed Tape” and the “65” refers to the blade length of approximately 65 millimeters. This type of razor wire is widely used in environments where strict security measures are required, such as military bases, border guards, high security prisons and critical infrastructures, due to its large size and efficient protection capabilities.

The 65 represents the longest blade length of any model, providing a larger coverage area and greater protection, and the blade thickness is typically 0.6 mm, ensuring adequate strength and durability.

CBT-65 razor wire supplied by Zhongda is usually manufactured from high quality galvanized steel or stainless steel to cope with a variety of harsh environments. Surface treatments include electro-galvanized, hot-dip galvanized or PVC coated to enhance its corrosion resistance and ability to adapt to specific environments. CBT-60 razor wire is also available in single spiral, double spiral and concertina styles.