This type of plate is commonly used to combine towing lines into a towing bridle having to also with marine related work. It is made up of stainless steel having data over plate having individual numbers for serial tracking. This delta plate meets and could also exceeds the grade ASME B30.20; below the hook lifting devices. These are specifically manufactured, designed and fabricated as per the standard of ASME BTH-1. They are vigorously tested up to 125% for proof.