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Qingda Industry Park, Chengyang District, Qingdao, China

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When you want to build a steel structural factory, we can provide you with many options. You can choose from one of our

existing building designs or we can customize one of our steel frame building designs to meet your unique specifications.

You can select from an array of layouts, amenities and features to make your steel structural factory meet your every functional

and aesthetic need.


Technical Parameters of steel structural factory as follows:
1. Primary structure frame:  Welded or Hot-rolled  H section steel made in material Q345B (Equivalent to A572 Gr50);

    Surface treatment: Ball blasting to grade Sa 2.5, hot-dip galvanized or painted; 
2. Purlin/girt: Cold-formed C or Z section steel made in material Q345B,  Glavanized 275gsm;
3. Secondary steel: Bracing, column bracing, horizontal bracing,  knee bracing, tie bar made in material Q235B ( Equivalent to A36);

    Surface treatment: Hand derust St 2.0, hot-dip galvanized or painted; 

4. Roof Cladding: 0.5mm/0.6mm Color corrugated steel sheet or sandwich panel;

5. Wall Cladding: 0.5mm/0.6mm Color corrugated steel sheet or sandwich panel; 
6. Trim, ridge tile, gutter,edge cover : Color Steel Sheet;
7. Rainspout: PVC Pipe;
8. Door: Plastic steel door, Aluminum door ,sandwich door ; Type can be sliding door, swing door, roll up door;
9. Windows: PVC/Plastic Steel/Aluminum Alloy Window;
10. Fasteners: Anchor bolt (Q234A), high strength Bolts(10.9S) , common bolt (8.8S or 4.8S)

Steel structural factory design parameters:


Length x width x Eave height, roof slope


Single slope, double slope, multi slope
Single span,double span, multi span

Beam and colum

Welded H steel made in grade Q345B (S355JR, A572 Gr50)


C/Z section steel with size C100-320, Z160-300


Angle steel or round bar

Roof and wall

Single color steel sheet or sandwich panel


Skylight band, downpipe, gutter, ventilator


Anti-corrosive paint or galvanized


Nude or on steel pallet


Feature and advantage:
1. Attractive design: Beautiful and elegant looks, using the color corrugated steel sheet or sandwich panel, insulation material is 

    EPS, rock wool or PU.
2. Easy assemble and dismantle: Can be rebuilt for dozens of time with bolts and screws
3. Firm structure: Steel frame structure and sandwich panels
4. Durable: The steel frame are all processed with anti-corrosion coated and can be used for as long as 30 years in good  maintenance.
5. Low cost by integrating & manufacturing & service processes.
6. With reliable quality and efficient service from designing, manufacturing to installation
7. Design are according to your requirements


We cater for the design and fabrication of steelworks. We comply with GB standard and ISO standard for all the works to

provide excellent and strong products. We are committed to satisfy your requirements and provide you with very competitive price.


Products and services:

* Drafting structural drawing and shop drawing

* Steel fabrication

* Precise welding : SAW / MIG

* Sand blasting and well painting

* Complete construction drawing for guide erection

* Pre-sale service and after-sale service 


Whatever building you need, BDSS can provide you with the best of solutions.