... Diameter:15mm-1500mm 4.Material:SS304/316 with graphite. gasket head:1.Material: SS304,316,316L with graphite,non asbestos and PTFE etc ... 4.5mm 3.Diameter:15mm-1500mm 4.Shape: with inner ring,whth outer ring,with inner&outer ring5.Feature: high mechanical strength ... and EN(DIN) standards or client request.PRODUCE SUPERION PRODUCTS WITH HEART AND SOUL!Company Qualifications: Super in quality,excellent in ...