Home
About Us
Company Profile
Honor
Enterprise Style
Join Us
Certification
Products
Prestressed steel strand
Unbonded steel strand
Prestressed anchor
Prestressed bellows
Project Show
News
Company News
Industry News
Business personnel
Contact Us
Feedback
What are the functions of mining steel wire ropes?
There are many types of steel strands, so different industries should purchase them according to their specific needs. Mining steel strands are definitely used in the mining industry. To help everyone understand them better, let's introduce their main functions below. If you want to know more, please read on.
2021
09-24
Longheng Prestressed Concrete Integrity Casting Team Win-Win
01-08
Happy birthday, Longheng
Manager Jiang 138 2185 5808
01-03
Longheng joins hands in charity
2020
12-31
Longheng Pre-stressed Project Acceptance Report New Version
Dajin Long Heng Prestressed Steel Strand Co., Ltd. is located east of Dongxing Road, Jinghai International Business and Logistics Park, Jinghai District, Tianjin. The center coordinates of the factory area are (N38°57'22.17", E116°56'16.93"). Boundaries: East: Dajin River Main Resource Regeneration Co., Ltd.; West: Dongxing Road, across the road is Hengxing Group; South: Tianjin Longjian Machinery Manufacturing Co., Ltd.; North: Shunyi Road, across the road is Tianjin Huatai Copper Industry Co., Ltd.
2019
04-02
Acceptance Opinion on Completion of Environmental Protection for the Technological Transformation Project of Low Relaxation Steel Strand for Concrete of Tianjin Longheng Prestressed Steel Strand Co., Ltd.
On May 26, 2018, Tianjin Longheng Prestressed Steel Strand Co., Ltd., in accordance with the "Environmental Impact Report for the Technological Transformation Project of Low-Relaxation Steel Strand for Concrete Use of Tianjin Longheng Prestressed Steel Strand Co., Ltd." and the "Interim Measures for the Acceptance of Environmental Protection upon Completion of Construction Projects," strictly followed relevant national laws and regulations, technical specifications/guidelines for the acceptance of environmental protection upon completion of construction projects, the environmental impact assessment report of this project, and the approval decisions of the approval authorities, conducted acceptance inspection of this project and provided the following opinions:
Tianjin Longheng Prestressed Steel Strand Co., Ltd. Low Relaxation Steel Strand for Concrete Technical Renovation Project Environmental Protection Acceptance Monitoring Report upon Completion
To protect the company's living and production environment, prevent pollution, protect the health of employees, ensure the full completion of pollution reduction targets, and gradually achieve clean production, this system is specially formulated.
The company is located in Jinghai Development Zone, Tianjin City.
Tianjin Longheng Prestressed Steel Strand Co., Ltd. is a high-tech enterprise specializing in the production of products for prestressed concrete, established in accordance with modern enterprise system. Located in Jinghai Development Zone, Tianjin, the company covers an area of 26,000 square meters, with a building area of 12,000 square meters. The total investment is 280 million yuan, and the registered capital is 100 million yuan. It specializes in producing various specifications of prestressed steel strands, prestressed steel wires, and unbonded prestressed steel strands for prestressed concrete. The annual production capacity is 120,000 tons. The company has introduced advanced domestic production lines equipped with German Siemens PLC fully automatic control systems. It mainly produces 1×7 structure and 1×3 structure prestressed steel strands for prestressed concrete; prestressed steel wires for prestressed concrete; and various specifications of unbonded steel strands. Advanced testing equipment such as WE-100KN, WE-300KN, JEW-600KN tensile testing machines, CWJ-6 type motorized bending testing machines, and SL-300 electro-hydraulic servo relaxation testing machines, along with complete and professional testing methods, ensure that product quality meets domestic and international standards such as GB/T5224-2014, ASTM416, and BS5896. Meanwhile, "Longheng" brand prestressed steel strands and steel wire series products have passed quality inspections and approvals from national authoritative institutions such as the National Inspection Center, the Ministry of Railways, and the Ministry of Metallurgy.