Black Square Tube Black Round And Squara Steel Pipes GI Galvanized Steel Pipe Bend Steel Pipes Service Customers
Erw Black square Hollow Section Steel Pipe/tubes
1. Grade: Q195,Q215,Q235,Q345; SS400,A53,A106,Low Carbon Steel, as request
2. Size(mm): 8*8-200*200 Thickness(mm): 0.3-5
3. Standard: GB/BS/ASTM/DIN/JIS
4. Certification: ISO9001, SGS, BV
Product Name | Ms Erw Black square Hollow Section Steel Pipe/tubes |
Material | Q195,Q215,Q235,Q345; SS400,A53,A106,Low Carbon Steel as request |
Standard | GB/BS/ASTM/DIN/JIS |
Finish Treatment | Color Painting, Oiled, BE, PE, Perforate Etc... |
Packing | Bundle with tie, Bundle with plastic bag, Or depends on request. |
Delivery Time | Dependes on Qty, Normally 10-20 days after received deposit or Lc. |
Production Cpacity | 2600 Tons Per Day. |


Product name | High Quality Black square pipe and Black round pipe |
Size | Rectangular Tube: 10*20-120*80mm Square Tube : 16*16-250*250 mm (check sizes provided from below table) |
Length | 6m or based on your request |
Standard | EN10210, EN10219, DIN17100, ASTM A36,JIS G3466 |
Materials | Q195, Q235, Q235B, Q275, Q345B, S235, S235jr, S355, S355jr, SS400, SS330, STK490,St33, St37, St52/ ASTM A36, A53, A106 |
Surface | Oil, bared, black paint, galvanized |
End finish | Plain end |
Technique | hot rolled, welded(erw) |
MOQ | 2 tons |
Usage | Civil engineering, architecture, steel towers, shipyard, scaffoldings, struts, piles for suppression of landslide and other structures |
Shipment | by bulk or load into 20ft / 40ft containers |
Delivery time | Prompt delivery, or as order’s quantity. |
Payment Terms | T/T or L/C at sight |
Price term | Ex-work,FOB,CIF,CFR,etc. |
Packing | Export standard package, suit for all kinds of transport, or as required. |


Cooperation Model | OEM or ODM |
Design | As per customers specific requirements or customers give us specific sample; or customers' conceptual or preliminary design; or customer sketched ideas. |
Certification | ISO9001:2015,CE |
Acceptable Drawing Format | jpg/ .dwg/ .igs/ .stp etc. |
Application Material Standard | If no any specially required by customers, we usually suggest our customers to try the equivalent China National (GB) standard material that our engineer team proposes which to be properly converted from ANSI, ASTM, SAE, EN, DIN, BS, JIS and etc., to contribute the material cost control. |
Aviailable Processing | shearing; crimping; laser cutting; bending; stamping; pressing; deep drawing; rolling; forming; fabricating; drilling; tapping; riveting; sopt welding; TIG; assembling |
Precision | Average level: ±0.05mm, depending on product's size, thickness and material |

Technological Process

Bending pipe service

Name | Detail | Optional |
Material | GB, JIS, ASTM, DIN, AISI.EN,AS. | Carbon steel, SPCC, SGCC, Stainless steel, Aluminum, Brass, Copper, Titanium Alloy, Nylon, Acrylic, UHMWPE, PVC etc. |
Shape | Plate, Tube, Rod. |
Processings | Accept | Laser Cutting, Precision Stamping, CNC Bending, CNC Milling, CNC Turning, Threading, Riveting, Drilling, CNC Punching, Die Casting, Laser Welding etc |
Surface Treatment | Accept | Brushing, Polishing, Vacuum Plating, Anodizing, Powder Coating, Zinc Plating, Chrome Plating, Nickel Plating, Tin plating etc |
logo | Accept | Silk print, Laser marking, UV print, Multicolor pad printing. |
Size | 160*200*150mm. | Accept custom size. |
Color | RAL , Pantone, RGB, CMYK. | White, black,silver, red, grey etc |
Software | CAD, Solidworks, CATIA, UG, PRO-E. Inventor, AI |
Drawing format | DWG, DXF, STEP, IGS, 3DS, STL, SKP, AI,PDF, JPG, Draft. |
Sample lead time | No surface treatment, 1-3 workdays. Require surface treatment, 3-5 workdays. |
Pricing Term | FOB, CIF, DDP etc |
Port of Loading | Qingdao |
Payment term | TT (30% in advance as deposit, balance before delivery) , L/C, trade assurance order etc. Cost under 5000USD 100% prepay. |

Good perpendicularity
With no bevel
Excellent bending technology
Out of roundness rate ≤ 3%
Thinning rate ≤ 15%
Measure the inner wall thickness of the bend
Application

PACKING
We will select the corresponding packaging method according to the different types of products. We will do our best to reduce the
loss in transportation.
TRANSPORTATION
Before the shipment, there will be professional quality inspection personnel to carry out on-site testing of materials,
specifications, etc, and photographed and archived. During the cargo transportation process, the customer can track and inquire
about the progress of the logistics
INSPECTION
Our products are checked through 16 processes at least , and have quality inspection reports from authoritative third
parties.Professional inspection is provide to ensure that the weight of the goods is sufficient.
Company Profile

Weifang Wilda Machinery Co.,Ltd founded in 2003. Specializing in the production of
high-precision galvanized welded steel pipes, we can produce round, square and other special-shaped steel
pipes according to customer orders.
We also have sheet metal processing workshop, welding workshop, metal surface treatment workshop,
which can meet the needs of different customers.
excellent employees, advanced technology, and sophisticated equipment, strict management is the company can continue to develop and raise, the product can win users rely on the root. "Accurate, reliable, professional"is our spirit of production and service beliefs
Why Choose Us ?

