Standardization scheme for anti-falling: There are corresponding standardized anti-foreign-body products for various tools widely used in the field during the construction, operation and maintenance of nuclear power, including cold/heat shrinkable connection sleeve, 8-word connection sleeve, D-ring, double D-ring, rotary hanging rope/grip/fixing ring, fast hook, professional unloading safety rope, safety rope of various specifications, FME special toolkit and other patent features. Products.