自紧王运用自紧理论，结合人体工学，研制出了新一代的活络扳手⸺虎口扳手。虎口扳手的扳唇张开像人手上的虎口，这一特殊构造使其具备强大的能力，可以解决多种传统活络扳手的痛点。
Combined with the theories of ergonomics and self-tightness, we developed a new type of adjustable wrenches, the Ergonomic Self-adjustable Wrench. It is so named because the shape of its opening jaws looks like humanpurlicue, which refers to the space between the forefinger and thumb. This unique design makes it as much flexible as your hands for handling more complex tasks.
