Chain Corrugated Steel Pipe is a series of connected links

A chain is a series of connected links which are typically made of metal. A chain may consist of two or more links.

China Harzone Industry Corp., Ltd. ,built in 1967, is the subsidiary of China State Shipbuilding Corporation Limited(CSSC) and one military enterprise whose conservation was given priority status in China.
 

Harzone Industry has the qualification of design, manufacturing and installing various steel products: emergency mechanized bridges; temporary and permanent steel bridges such as Pontoon Bridge, Bailey Bridge, Truss Bridge, Suspension Bridge, Girder Bridge and Cable Stayed Bridge; steel structures for industrial workshops, commercial buildings and habitation buildings; special equipment such as power transmission tower, television tower, radio tower, microwave tower, communication tower, and railway steel pole.
 

Harzone Industry has the first-grade steelwork manufacturing qualification; has the ISO9001-2000 quality system, the ISO14001-2004 Environmental Management System, and has GB/T28001-2001 Occupational Safety Management System Certification.
 

Harzone Industry owns two Production Bases, one Research & Design Department in Hubei province, and one subsidiary company in Beijing. Our products have been exported to over 40 countries in Asia, Africa and Latin America.