EKK welded metal bellows are of the nesting type, manufactured by precision forming and welding techniques. The physical properties and chemical composition are controlled strictly according to the U.S. quality control standards for rockets and aircraft.Bellows products utilizing the durability, pressure resistance and uniform displacement include bellows seals and vacuum bellows in semiconductor or electronic parts manufacturing facilities, and have earned a reputation for high performance. Additional products manufactured by EKK include welded metal bellows expansion joints, accumulators, bellows couplings for precision equipments, fuel control rods for nuclear reactors, ultra high vacuum equipments for nuclear fusion and various bellows for experimental facilities.