A. Primary member

1. Cutting:
   • By the CNC automatic multi-head cutting machine, steel plates can be cut to any shape design. All the plates are cut to any required size by extremely hot temperature with thickness up to 80mm.

   • Equipment and machines:

     • CNC automatic cutting machine.

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     • Mechanical cutting machines 6100x20mm is able to cut steel plate with the thickness up to 20 mm.

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     • Mechanical cutting machine 6100x16mm is able to cut steel plate with the thickness up to 16 mm.

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2. Hole Punching
   • After cutting, use the automatic drilling machine to drill or punch holes on the cutter plates as required.
   • Equipment and machines: drilling machine, hole-punching machines.

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3. Assembling
   • Joining steel plates into the beam or column, building components by automatic or semi-automatic assembling machine.
   • Equipment and machines: automatic or semi-automatic assembling machine.

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4. Welding and connection details welding:
   • After assembling, components are transferred to the next procedure of welding two flanges of steel plates with submerged arc weld. This process creates welds with high quality, big intension and absolute sealing.
   • We apply modern welding technology according to the welding procedure approved by AWS American Welding Association Standards.
   • Equipment and machines: automatic welding machines, hand welding machines.

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5. Surface cleaning:
   • Built-up steel plates and welds are then cleaned physically or cleaned by using the sand-spraying machine, depending on the customers' choices.
   • Equipment and machines: automatic shot-blasting machine, grinders.

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6. Painting:
   • ASI uses the industrial high-pressure painting machine according to American technology that creates a tough, durable and beautiful finish. Building components will be sprayed of grey paint coating or red paint coating or other special paints according to the customers' choices.
   • Equipment and machines: High-pressure paint spraying machine, grinders

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B. Secondary members

1. Forming:
   • All secondary components such as purlins and girts are manufactured from the Zinc-coated Cold-Rolled Steel Sheet in Coils or black-coated Cold-Rolled Steel Sheet in Coils in accordance with ASTM standard. These components are then cold-formed into “Z” or “C” shape with the thickness from 1,5mm to 2,5mm.

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   • The time during adjusting rollers is around 2 ~ 3 minutes without changing rollers. After the roll is formed by this roll forming machine, the surface will be very smooth and beautiful without any scratch on the surface.

   • Machine: Purlin Rolling Machine

     • C-Purlin forming machine.
     • Z-Purlin forming machine.

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2. Hole Punching
   • Purlins and girts can be supplied plain, or punched using hole punching standard, spaced to your specifications.
3. Painting:
   • ASI uses the industrial high-pressure painting machine according to American technology. Building components will be sprayed of grey paint coating or red paint coating or other special paints according to the customers' choices.

C. Sheeting

• All kinds of steel panels are rolled from the high-quality steel. The materials are hot-rolled, cold-rolled, galvanized and colored steel coils according to ASTM international technical standards.
• Equipment and machines: Purlin Rolling Machine.

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