High-quality Adjustable Scaffold Base Jack

Building from the backwater: chassis, screw, adjusting nut three parts.
Building backwater purposes: the construction process and with the use of steel and scaffolding, scaffolding and can modulate the height of the rack, support the weight balance, load-bearing role in the construction process up to the plane of the applicators used in concrete pouring with the rapid development in recent years, real estate and transportation perspective, the amount of backwater also made progress by leaps and bounds.
Building backwater Category:
1 .Surface Treatment: Galvanized,,powder coated
2. One set includes: inner pipe/upper tube,outer pipe/lower tube,screw pipe
nut,handle,pin
3 .Diameter size: Hollow type: φ48X4.0 φ38X4.0
Solid type: φ32/φ34
4: Height of jack base :300mm/450mm/500mm/600mm/750mm/950mm/1000mm
5:U head jack base size;100*100*45*3.5mm/165*165*100*4mm or customized
6: Base plate:120*120*5mm/150*150*6mm/140*140*4mm

High-quality Adjustable Scaffold Base Jack

Please answer to my following questions before you order.Thanks
Construction screw configuration
1) The thickness and size of the chassis
2) Welding configuration: welding processes are welding and friction welding.
3) rib: connecting portion screw and whether the chassis stiffeners, generally based on the requirements of the project, the longer screw backwater directly with stiffener shorter bottom bracket with a little.
4) the length of the screw, usually from 40-70, the thickness of the screw generally φ28, φ30, φ32, φ35.
5) entrusted with the adjusting nut can be divided into two processes: cast iron parts and stamping parts. Each model has a nut adjusting nut severity of the size of the points. Nut shape in two ways: bowl nut and wing nut.