Lower lever (Stringer) used in this project must be galvanized steel or plated corrosion protection additives are designed to be placed on a tripod, the lower beam system (Bolted Stringer System) with a nut with a tripod.
Bottom beam (Stringer) used in the project must be galvanized or plated to prevent corrosion. Designed to be placed on the stand properly on the lower beam system (Bolted Stringer System) by a nut is attached to the stand.
Lower beam (Stringer) used in this project will be a zinc coating or plating corrosion protection coating. Design can be placed on the head stand properly according to the system lower beam (Bolted Stringer System) with the น็อตเป็นตัว adhere to the stand.