Shandong Hongchen Metal Materials Co., Ltd
PPGI · PPGL · GI · GL / ALUZINC · ROOFING SHEETS
Steel coils stocked inside the Hongchen factory workshop
Source factory · Boxing, Shandong, China

Colour steel roofing sheets, colour coated steel coils & a wide range of steel products — direct from the source factory

Specialist production of Galvalume corrugated sheets, red corrugated sheets and blue T-type sheets, plus PPGI, PPGL, GI and GL steel coils — alongside rebar, square tubes, angle steel, flat steel, round steel and other steel products. Custom production to order, strict quality inspection, and full-container export.

Send an Enquiry
15 years
of factory production history
10 years
of export experience
350,000 t / year
steel coil capacity
FOB · CIF · EXW
flexible trade terms
Inside the factory — coils in stock in the workshop, ready for coating, slitting, roll-forming or export packing.
01 · Core product — colour coated coils

Steel coils

Working ranges: thickness 0.12–1.2 mm · width 600–1,250 mm, full width or slit to order. Final grade and tolerance are confirmed on the quotation.

Hot rolled steel coils stacked in the factory warehouse
Hot rolled coil

HRC

Uncoated coil for structural, pipe and fabrication work. Grade, thickness and width confirmed on the enquiry — and it can be combined with coated coils in one order.

Rows of dark grey steel coils stacked in the factory warehouse
Prepainted galvanized coil

PPGI

Colour paint over a galvanized base — the standard roofing coil. Standard RAL colours, gloss or matte.

Rows of silver steel coils stacked in the factory warehouse
Prepainted Galvalume coil

PPGL

Colour paint over an aluminium-zinc base, applied in-house on our own colour coating line.

Red PPGI colour coated steel coil on the factory colour coating line
PPGI · PPGL

Red colour coated coils

One of the two lead colours: red coil faces and wound surfaces stocked in the warehouse, ready to confirm by base, coating mass and paint system.

Rows of silver Galvalume steel coils stocked in the factory workshop
GL · GALVALUME

Galvalume coils

Rows of silver Galvalume coils stocked in the workshop — aluminium-zinc alloy coating with a bright silver surface, the corrosion-resistant base for hot and coastal markets, e.g. AZ70 / AZ100. Supplied plain, or colour coated as PPGL.

Colour coated strip running through the factory colour coating line

On the colour coating line

PPGI and PPGL are named by their base: galvanized for PPGI, aluminium-zinc for PPGL. The colour coat is applied and checked in the factory.

Close-up of bright galvanized steel strip running through the production line rollers

Spangled galvanized production — on the line

Spangled galvanized strip running through the production line and being wound into coil — the bright spangle pattern showing across the surface; made in-house and checked coil by coil as it comes off the line.

Roll-formed in-house

Roofing sheets & tile profiles

We supply the coil and the finished sheet: the coil is slit to width, roll-formed to profile, then cut to your length. All steel — no plastic.

Rows of precision-packed sheet bundles with green edge protection, strapped and stacked in the warehouse for export FINE PACKING · EXPORT

Precision-packed for export

Finished sheets are wrapped, strapped and edge-protected pack by pack, then stacked in rows in the warehouse — export-grade packing that holds up through container loading and the sea voyage.

Rows of strapped packs of flat sheets stacked in the warehouse, ready for container loading BULK · PACKED · STACKED

Packed in volume for container orders

Finished sheets are strapped into packs and stacked in quantity — the batch supply behind a full-container order.

A stack of blue corrugated roofing sheets in the workshop, layered wave edge visible

Corrugated colour range

The classic wave profile in colour — including red — with the surface and profile checked before cutting and packing. Custom colours made to order.

A stack of silver-grey T-type trapezoidal roofing sheets in the workshop

Grey T-type / trapezoidal sheets

The raised grey T profile shown across the full sheet — a strong, fast-draining choice for warehouses and factories, with custom colours made to order.

Rows of silver stone-coated tile sheets stacked on pallets in the workshop, with coils behind

Stone-coated tiles — the full-sheet finish

A stone-chip coated metal tile with a granular tiled finish across the full sheet — a premium residential roofing option; profile and colour are confirmed on the enquiry.

3D wood-grain colour coated steel tile sheets in graphite grey, stacked in the workshop

3D Wood-Grain Colour Steel Tile

Deep ribs, cut to your length and stacked ready to load.

Close-up of galvanized floor decking sheets stacked in bundles, profiled ends facing the camera

Floor Deck / Steel Decking · Made to Order

Made to order — custom-made to your deck profile, rib height, thickness and length; profiled steel decking sheets for composite floor slabs.

Nine-panel collage of roofing sheets and steel decking in the workshop, in different profiles and colours

Roofing Sheets · Made to Order

Made to order — roofing sheets custom-made to your profile, colour, thickness and length.

Roll-forming · Real workshop photos

Roll-forming, photographed on site

Panorama of the workshop with rows of steel coils stocked beside the slitting and roll-forming lines
Workshop panorama — coils stocked in rows beside the slitting and forming lines, ready to go on the machine.
Close-up of a colour steel sheet running through the shearing and forming machine
At the machine — colour sheet running through the line, sheared and formed to length.
Factory strength

The factory behind the coils

A source factory in Boxing, Shandong — production, coating, roll-forming and export packing under one roof. No middleman: you order from the factory that makes the coil.

Location
Dianzi Town, Boxing County, Binzhou City, Shandong Province, China — in the Boxing coated-steel cluster, with road access to Qingdao / Tianjin ports (confirm port routing on the quotation)
History & exports
15 years of factory production history, including 10 years of export experience supplying overseas importers, wholesalers and roll-formers
Annual capacity
350,000 tons of steel coil per year — coil capacity only; roofing sheets are not included in this figure
Main lines
Galvanizing / Galvalume base, colour coating line, slitting, and roll-forming for roofing sheets
Panorama of the colour coating line hall with coils waiting at the line side
Colour coating line hall — the full line in one workshop, coils waiting at the line side.
Blue coated strip on the colour coating line
Colour coating line — paint applied in-house on PPGI / PPGL.
Coil coming off the Galvalume production line
Coil production line — GL / Aluzinc coil off the line, checked coil by coil.
Steel coil being slit into narrow strips on the slitting line
Slitting line — a coil slit into narrow strips to the width your roll-forming line needs.
Rows of steel coils stocked in quantity in the factory warehouse
Warehouse stock — coils lined up in quantity, ready for coating, slitting or packing.
03 · Steel pipes & other steel

Steel pipes & other steel, in brief

These lines can be quoted on enquiry, but they are not the focus of this factory range. Specifications and availability are confirmed before quotation.

Rows of steel pipes and tubes stocked in the warehouse
Steel pipes stocked in rows in the warehouse — square tubes, round pipes and sections ready for loading.
Bundles of ribbed steel rebar stacked in the warehouse
RebarRibbed bars for concrete reinforcement.
Bundles of square steel tubes stacked in the warehouse, square end faces in close-up
Square Steel TubesSteel pipe products — round tubes, square tubes, Galvalume tubes and more: hollow sections for frames and fabrication.
Stacks of L-shaped angle steel bars in the warehouse
Angle SteelAngles for supports and structures.
Stacks of flat steel bars in the warehouse
Flat SteelFlat bars for fabrication and fittings.
Bundles of solid round steel bars with bright solid cut ends
Round SteelRound bars for machining and construction.

Send the size, grade and quantity with your main coil or roofing enquiry if you want these items priced together.

Production & quality control

Checked step by step, not just sold

Every order is produced and checked against its own specification before it is packed — a factory QC routine, not a trader's visual look-over.

QC 1

Thickness check

Measured against the ordered thickness in mm.

QC 2

Width check

Coil and sheet width measured against the order.

QC 3

Coating check

Zinc or aluminium-zinc coating checked to the ordered coating mass.

QC 4

Paint film check

Paint thickness checked on colour coated coils.

QC 5

Colour & surface

Colour, finish and surface inspected sheet by sheet, coil by coil.

QC 6

Final pre-shipment check

A full check before packing and loading — what is quoted is what is loaded.

Export cases & packing

Loaded in volume, shipped overseas

Sea-worthy export packing, photographed as shipped. Cooperating markets include Kenya, Tanzania, Ghana, Nigeria, Burkina Faso, Somalia, Zimbabwe, Mali, Iraq, Kazakhstan, Russia and Azerbaijan — and many more. References for your market are available on request.

Rows of steel coils in pink export wrap stacked in the workshop
Export wrap — film, edge guard and strapping on every coil.
Steel coils loaded in a row on a truck inside the workshop, ready for factory delivery
Factory delivery — coils loaded on the truck in the workshop, ready to go.
Coils lashed and secured inside a shipping container
Inside the container — coils lashed and secured for the sea voyage.
Steel coils stowed in volume in the hold of a bulk vessel for sea shipment
Bulk shipment — coils stowed in volume in a vessel hold for sea transport.
Why choose us

Why buyers order from Hongchen

A source factory in the Boxing coated-steel cluster — the points below are how we work, order after order.

Source factory, no middleman

You order from the factory that makes the coil: production, coating, roll-forming and packing under one roof.

In-house colour coating line

Paint is applied on our own line; gloss, matte and printed finishes are controlled in the factory.

Capacity for container volume

350,000 tons of coil per year, loaded by the full container.

Six-step quality control

Every order is checked against its own specification before packing.

Sea-worthy export packing

Film, edge guard and strapping on every coil; coils lashed and secured inside the container.

Made to your specification

RAL colour matching, slit-to-width coils, cut-to-length sheets, and 2D / 3D wood-grain prints.

Full-container B2B

Who we supply

Coil importers & wholesalers

Buying PPGI, PPGL, GI and GL by thickness, coating and colour, in full-container loads.

Roll-formers & processors

Roofing-sheet plants forming corrugated, trapezoidal and tile profiles locally — full coils, or slit to the width your line needs.

Distributors

Building-material and roofing distributors supplying residential, commercial and industrial roofs.

How to enquire

Send the specification, get a real quote

1

Enquire

Send specs & quantity

2

Quote & PI

Factory quotation & proforma invoice

3

Confirm

Confirm the order & production

4

Produce & QC

Production with the six QC checks

5

Pack & Load

Export packing & container loading

6

Ship

FOB / CIF / EXW to your port

FAQ

Questions buyers ask us

What is the minimum order quantity?

We focus on full-container B2B orders. The workable quantity depends on the product and specification — send your spec and quantity, and the quotation will confirm what loads best in one container.

Can I get samples before ordering?

Ask us on WhatsApp with the product, colour and finish you are considering. Which samples can be sent depends on the product, and we will confirm before you place an order.

Can you match my colour and sizes?

Yes — colours can be matched to the RAL code you name, coils can be slit to your width, and sheets are cut to your length. State the RAL code, width and length on the enquiry.

How is the cargo packed for sea shipping?

Sea-worthy export packing: film, edge guard and strapping on every coil, with coils lashed and secured inside the container for the voyage. Sheets are strapped in packs and stacked for loading.

How long does production take?

Production time depends on the specification and quantity, and is confirmed on the quotation / proforma invoice for your order before you confirm it.

Which trade and payment terms do you offer?

We quote FOB, CIF or EXW. Payment terms are agreed on the proforma invoice — send your destination port and we will quote on the term that fits.

07 · Export cooperation

Factory direct. Custom production. Global export supply.

Send the product, thickness, width, coating, colour, quantity and destination port. We will quote from the factory — no middlemen.

Contact Us for a Quotation
Enquiry

Send your specification

Fill in what you know, then send it on WhatsApp — the form prepares your enquiry as a WhatsApp message, ready to send to the factory. Thickness, width, coating, colour, quantity and target port get you a real quote.

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