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Zhongbo Railway Fastening Co., Ltd
Zhongbo Railway Fastening Co., Ltd  

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  • tunnel bolt for the tunnel construction
  • tunnel bolt for the tunnel construction
  • tunnel bolt for the tunnel construction
  • tunnel bolt for the tunnel construction
Enlarge tunnel bolt for the tunnel construction

tunnel bolt for the tunnel construction 

Price: 0.5~0.8 USD 
Payment Terms: T/T,L/C 
Place of Origin: Jiangsu, China (Mainland) 
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Product Detail

Means of Transport: Ocean
Packing: gunny bags+wooden pallets
Production Capacity: 1000000
Delivery Date: 20 days

tunnel bolt

Name

railway tunnel bolt with square flange and round thread


curve bolt, or the type by customers' drawings

Grade

4.6

5.6

8.8

10.9

Material

Q235

35#

45#

40Cr

Mechanical properties

Tensile strength: ≥400Mpa

Tensile strength:≥500Mpa

Tensile strength:≥800Mpa

Tensile strength:≥1000Mpa

Yield strength:≥240Mpa

Yield strength:≥300Mpa

Yield strength:≥640Mpa

Yield strength:≥900Mpa

Elongation:≥22%

Elongation:≥20%

Elongation:≥12%

Elongation:≥9%

Cold bending: 90 degree without crack

Cold bending: 90 degree without crack

Cold bending: 90 degree without crack

Cold bending: 90 degree without crack

Surface

plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing

Standard refers

UIC864-2

Ms. Ivan.SUN
 Ms. Ivan.SUN
sales
Tel: 86-512-52863072
Fax: 86-512-52863559
Mobile: 189 1363 6672
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Company Info

Zhongbo Railway Fastening Co., Ltd [China (Mainland)]


Business Type:Manufacturer
City: Suzhou
Province/State: Jiangsu
Country/Region: China (Mainland)

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