What are the shapes of the carabiner?
A carabiner is one of the equipments for mountaineering. The material of carabiner is generally aluminum alloy, or iron, or stainless steel, with different shapes. . Most people will choose aluminum alloy carabiner because it is light, anti-corrosion, anti-rust, etc., all of which are loved by outdoor sports enthusiasts; stainless steel triangular carabiner can be used [...]