... joints . 1.Certificate : ISO 9001 2.length:100-2000 mm 3.Pressure:PN10,PN16,PN25,CL150 4.OEM Bellows ... and compensator combine the flexibility of stainless steel bellow and rubber damping, it can absorb shock and noise, compensate Heat ... standardmaterialcarbon steel , stainless steel , alloy steel , low-temperature steel certificationISO9001:2000 API , CE,BV , SGS , LOIYD ,CE Features large amount ...