Gold Member Since 2012
Audited Supplier
Qingdao Doublegrand Metal Products Co., Ltd.

Steel Structure, Steel Structure Workshpo, Steel Structure Warehouse manufacturer / supplier in China, offering Prefabricated Building Steel Building Steel Crane Buildings, Prefabricated Steel Structure Mobile Buildings (DG3-045), Prefabricated Building Roof & Wall EPS Sandwich Panel (DG9-004) and so on.

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Supplier Homepage Product Steel structure building Prefabricated Building Steel Building Steel Crane Buildings

Prefabricated Building Steel Building Steel Crane Buildings

FOB Price: US $30-100 / Square Meter
Min. Order: 200 Square Meters
Min. Order FOB Price
200 Square Meters US $30-100/ Square Meter
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Port: Qingdao, China
Production Capacity: 20000ton/Year
Payment Terms: T/T

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Basic Info
  • Model NO.: DG-SC05
  • Standard: GB, ASTM, DIN, JIS, AISI, BS
  • Forming: Hot-Rolled Steel
  • Member: Steel Beam
  • Carbon Structural Steel: Q235
  • Application: Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing
  • Bracing: Steel Purlin,Galvanized
  • Roof: Colorful Steel Sheet,Sandwich Panel
  • Transport Package: Bulk
  • Origin: China
  • Type: Light Section Steel
  • Trademark: Quality Carbon Structural Steel and Alloy Structural Steel, DG
  • Connection Form: Welded Connection
  • Type of Steel For Building Structure: High-Strength Steel
  • Residential Wall Structure: Connector
  • Steel Frame: Steel Tube,Galvanized
  • Maintenance: Sandwich Panel,EPS,PU,Rock Wool,etc.
  • Wall: Colorful Steel Sheet,Sandwich Panel
  • Specification: Q235, Q345
  • HS Code: 7308900000
Product Description
Product Description

Our company is a leading designer, fabrication, manufacturing, supplier, exporter of pre-engineered metal and steel crane buildings for industrial, mining, and manufacturing projects worldwide. We provide multiple design support specifications for any tonnage amount to meet your steel crane building needs:
1. Overhead traveling bridge crane
2. Top runner bridge crane
3. Underhung bridge crane
4. Gantry crane
5. Jib crane
6. Monorail

Our company routinely designs factories with multiple overhead crane systems, mezzanines for storage, conveyor systems for material handling, and concentrated loads on mezzanines or roofs for storage tanks and mechanical equipment. We could design, manufacture, fabricate, export such kind of steel crane buildings, metal crane buildings, heavy industrial steel buildings with following grade cranes:
850ton crane,
800ton crane,
780ton crane,
740ton crane,
750ton crane,
755ton crane,
680ton crane,
620ton crane, etc.

2ND part:
1. We have delivered our engineers and installation team to do our steel buildings all over the world.

3RD part. For our steel structure warehouse building characteristics,
1. We can supply all kinds of steel structures, steel bulding, metal building, modular house,
Steel frame for warehouse, workshop, garage etc, steel beams, other riveting and welding parts.
2. We can also make and develop new parts according to customers' drawings and detailed dimensions.
3. Specifications: You should provide us following information
1)Size: MOQ is 10m2, width X length X eave height, roof slope
2)Type: Single slope, double slope, muti slope; Single span, double-span, Multi-span, single floor, double floors!
3) Base: Cement and steel foundation bolts
4) Column and beam: Material Q345(S355JR)or Q235(S235JR) steel, all bolts connection! Straight cross-section or Variable

Because of our excellent quality and competitive price, in 2009 we have exported our 16000m2 steel structure workshop building, 4-storeys steel structure factory building to HAWAII, USA successfully during past period,
2. Building site: HAWAII, USA
Building type: 4-storeys metal building steel structure workshop
Structural steelwork used: 210 tons
Steel building contractor: Abrons Construction CO Inc
Steel building subcontractor: Qingdao baorun steel
Construction detailling software: XSTEEL
Welding technology: Conformity with AWS certificate
Seam: 100% full penetration welding seam
Surface treatment: Primary member painted Jotun brand epoxy zinc rich primer, secondary member, purlines and addtional fittings, accessories galvanized.

1. Pls be informed that we are exporting our steel structure warehouse building of
5) 330Mx180Mx16M steel framed factory building to Burendi

2. We have exported our steel structure factory buildings to Congo, also we have successfully exported our steel buildings to Cameroon, surely we have working hard to develop various kinds of steel buildings in Western Sahara, Mauritania, Senegal, the Gambia, Gulnea-Bissau, Guinea, Sierra Leone, Liberia, Cote D'voire, Ghana, Togo, Benin, Gabon, Congo market.

Prefabricated Building Steel Building Steel Crane Buildings

Project Name

steel structure


total length and width, roof and eave height, roof pitch, etc

Roof and Wall

option: EPS, fiber glass, rock wool or PU sandwich panel

Door and Window

PVC or Aluminum alloy; sliding door or rolled door

Column and Beam

option:hot rooled or welded H section, I section; painting or galvanized


option:C-Section or Z-section

Local Climate

1.wind speed  
2.snow load 
3.rain quantity 
4.earthquake grade if have
More details is preferred.

Crane Parameter

 If need crane beam, crane tons parameter and lift height are needed


 1. according to clients' drawing 

 2. design as per clients' dimension and requests


Naked loaded in shipping container or as per requests.


 20 GP,  40HP, 40 GP,  40 OT
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