It is the alumninium material carabiner with automatically locking closure. The carabiner was used very often in climbing or mountain or outdoor.
This item was tested and certified under CE standard for EN362:2004.
Purpose: Jech carabiners are designed to be used as anchorage connectors or connectors for fall arrest, restraint, work positioning systems.
Following are descriptions of these applications. See Figure.
Fall Arrest: Fall arrest systems typically include a full body harness and a connecting subsystem, such as a self retracting lifeline. Maximum permissible free fall is 6 feet. This type of system is used where a free fall is possible before the fall is arrested.
Restraint: Restraint systems typically include a full body harness and a lanyard or restraint line used to restrain the user from reaching a hazard (leading edge roof work). This type of system is used where no vertical free fall is possible. Work posltlonlng: Work positioning systems typically include a full body harness and lanyard to position or support the user at the work position. Maximum permissible free fall is 2 feet.