... : AISI304,AISI316L,AISI 3215) application:This gives pump pipes a flexibility link, allowing it to absorb ... steel hoses, bellow expansion joints and pump connectors.Our company mainly produces hoses and expansion joints in ... from 1/4" to 32" and 3/4" to 320" for bellow expansion joints.In 2004, our company ... .Equipped with 26 production lines, bellow and hose forming machines, and CNC lathes, our annual ...