... manufacturer 2.ISO9001:2008 3.size:25mm, 35mm, 50mm, 76mm Thin Wall Metallic Raschig Ring 25mm, 35mm, 50mm, 76mm Since 1914 when ... ×76×0.821218306997.380×80×1.23001600659690×90×1.0236116062 Thin Wall Metallic Raschig Ring 25mm, 35mm, 50mm, 76mm