... 7Bar 3.High quality and best price Zhejiang Jindun Pressure Vessel Co.Ltd was established in 2000. ... . Upholding the mission Safe First, Quality First , Jindun put a heavy investment to build 9 production lines ... which is unique in the world. At present, Jindun has an annual production capacity of 2 million ... cylinder, with outside diameter from 204mm to 420mm, Jindun has become a major base in China for ...