Metal Raschig Ring 20 years professional manufacturer Size:16mm,25mm,38mm,50mm, 76mm,90mm Material:SS304,SS316,SS316L,SS410 Metal rasching ring is made ... features such as thin wall, heat resistant, high free volume, high capacity, low resistance, high separation efficiency and so on. It is especially ... or call me directly with my mobile phone: 8618979999009. Metal Raschig Ring