this is high quality aluminum truss sleeve block, it is used for pillar F34 and beam F34 trussing. it is made of aluminum plates and wheels and connectors.
The Aluminum 12-Inch Square Box Truss Sleeve Block is a precision-engineered concert & event stage solution designed for use in professional ground support towers and roof systems. This technically accurate component is manufactured from structural-grade 6061-T6 aluminum, utilizing a heavy-duty Connection & Material System that is fully compatible with standard 290mm (12-inch) square trussing, such as Global F34. This sleeve block allows for the smooth vertical movement of a horizontal truss span along a tower mast, providing a professional and stable environment for industrial-grade stage productions where reliable lifting and structural integrity are mechanical necessities.

this is a Aluminum 2m High 290mm Truss Lift with motor and full set of equipments

the spigot truss sectional sizes are 830mm wide and 630mm deep. the main tube is 50x4mm or 60x5mm.
This ultra-heavy-duty Aluminum Spigot Truss features reinforced 50x4mm and 60x5mm main tubes, engineered for massive spans and maximum load requirements. Ideal for professional concert and event stage builds, its high-precision spigot connection ensures rapid assembly and unrivaled structural stability for world-class productions.

This is a Silver Color Lifting Truss Square Spigot Lighting Stand Truss with total sizes are 9m long and 7m deep, and 8m high.

T2-10-D8+
Load:1000kg
The product you purchased contains components:
stage hoist: 1 pc
Flight case of hoist: 1 pc
Chain stop stripper: 1 set
Chain bag: 1 pc
Load chain: 1 pc
Power cable: 1 pc
Product quality certificate: 1 pc
Operating manual: 1 pc

aluminum 0.9-1.5m high, loading 90kg, weight 7.5kg, 50mm tube pole
steel 1.2-1.6m, loading 70kg

Aluminum Hand Operated Light Stand, 
Sound Stand, 
Beam Parcan Surface Light Bracket, 
Lifting Tripod T-frame

lifting sling is one of most important lifting equipment and materials related to industrial and construction, particularly in the realm of material handling and lifting operations.

If you're looking for a strong, lightweight, and easy to assemble aluminum truss system, then the solution is clear. Aluminum lighting truss and portable stage is a perfect solution for a variety of projects including photography, exhibitions, and more.

The Concert Party Stage Truss Square Lighting Truss With Lifting System is a stage light system that comes with a number of features that are perfect for the modern concert venue. This truss system has a square shaped frame that is capable of holding lights up to 75 pounds. It is designed to be placed in the center of the stage, with no poles in the way of performers. The truss is designed to be assembled in minutes and is ready to go when you are. The lights are capable of being mounted in different positions, depending on your needs. The Concert Party Stage Truss Square Lighting Truss With Lifting System is perfect for any concert venue.