COMPANY 03 · FACTORY

Daqiuzhuang: coil in, frame out, container at the gate.

The works sits in Tianjin's tube cluster: coil supply, forming lines, bending, punching, welding and a galvanising partner within reach. What follows is the process a frame goes through, not a list of machine names.

Finished stock hall: tube, square, profileTianjin mill

Coil

Pre-galvanised coil, Z275, checked for coating mass and thickness before it enters the line.

Forming

Tube rolled and cut to length; profiles rolled to the drawing.

Bending

Arches bent to radius on a setup per span; ovality checked after bending.

Punching

Holes punched to the clamp pattern, one pattern per house.

Welding

Where a joint must be a joint: trusses, base plates, door frames.

Coating

Pre-galvanised retained, or hot-dip at the partner plant after fabrication.

Packing

Nested bundles, marked by house and member, fittings packed inside.

Capacity, stated as capability

Range and limits
Capability	Range	Note
Tube outside diameter	Ø6–1,200 mm	Round
Wall thickness	0.5–16 mm	Depends on section and mill
Single length	up to 16 m	Longer requires a special arrangement
Sections	Round, oval, SHS/RHS, C/Z, gutter	Oval arches bent in-house
Cutting	to order length	±2 mm
Bending	to a stated radius	±5 mm over the arc
Punching	to pattern	±1.5 mm hole position

Capacity is what we can produce, not a stock list. Stock changes weekly; ask for what is on the floor today.

What a factory visit shows

Coil storage, the forming line, a bending setup, the punch pattern for a live order, the bundle yard and the loading bay. It also shows what is not there: no glass line, no glazing assembly, no climate control integration. That is the scope boundary made physical.

Visits

Buyers and inspectors are welcome by appointment. If you cannot travel, we will do a video walk-through of the specific order — not a marketing film.

Open selection list

Verify us before you commit

Ask for the mill certificates, the packing photos or a video call on the line. We would rather answer those questions now than after the deposit.

Request documents & a call WhatsApp the sales desk