Spherical iron tube joints: Started in 1998. RND co-operation with TAIWAN and Japanese companies for fire-fighting equipment. 2002 saw the successful passing by ZHEJIANG PROVINCIAL NEW SCIENCE AND TECHNOWLEDGE ACHIEVEMENT Inspection of flexible joints. In 2004 the National Quality Audit & Test Center of Fixed Fire-fighting System & Fire Endurance Structures approved the quality of our slotted tube joints. Meanwhile they come into good selling in China market.
