With the increasing degree of lifting mechanization, the wide application of equipment not only speeds up

The trolleys of medium and small cranes adopt P-type railway rails, while the trolleys or trolleys o

Razor wire, also called barbed tape, is easy to install and acts as a visual deterrent as well as a physical barrier, which is extremely difficult to climb. It is made of galvanized or stainless steel materials for different environments and security grade.The razor tape is particularly difficult to

First we start with the first spiked metal. An abandoned wire with points wound onto it each couple of inches was instrumental in horticulture and fighting. If you somehow managed to curl it up and afterward grow it like an accordian (or a concertina), it becomes concertina wire.