Shandong China Coal Industry&Mining Supplies Group
| Place of Origin | China |
| Brand Name | china coal |
| Certification | MA, ISO9001 |
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Product Specification
| Place of Origin | China | Brand Name | china coal |
| Certification | MA, ISO9001 | ||
| High Light | Negative pressure air duct | ||
Introduction
Application:used in coal mines, tunnels, underground local fan for positive pressure ventilation;
air duct varieties: coated cloth duct by rubber coated cloth material into a positive pressure air duct, plastic and rubber coated cloth duct pressure coated cloth duct pressure.
1－ end of the ring ２－2 - rings installed lines ３－ rings ４－ trans side
projet size tolerance（mm）
air duct dia.（D） 300 400 450 500 600 800 1000 0±6
air duct length（L） 5 10 20 0±100
1, hairdryer size or special shape specifications shaped duct, elbows, tees, etc., can be manufactured according to the buyer's requirements.
2, hairdryer rings, rings and other metal parts for end specifications are subject to special requirements agreed upon by both parties.
3、3, hairdryer opposite side ends plus its length L, is 150-200mm.
Duct ventilation duct performance test report
Diameter,，mm one hundred meters windage（N·S 2 /M 8 ）
300 ≤811.0
400 ≤196.0
450 ≤122.0
500 ≤54.0
600 ≤24.0
800 ≤6.0
1000 ≤2.0
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2001
Total Annual:
>lessthan$1,000,000
Employee Number:
1000-2000
Ecer Certification：
Active Member
Shandong China Coal Industrial&Mining Supplies Group Co.,Ltd (hereinafter referred to as china coal) is a group company, which is a collection of e-commerce, machinery manufacturing, software, research and development, modern logistics of large diversified industrial group. The group has 100 ... Shandong China Coal Industrial&Mining Supplies Group Co.,Ltd (hereinafter referred to as china coal) is a group company, which is a collection of e-commerce, machinery manufacturing, software, research and development, modern logistics of large diversified industrial group. The group has 100 ...
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