Before revision: Djwhashjsx qsgsaghsahshasjshshsaishahshsahshsasdihadhdsa sahdashdasidhsaisahasjsaksak Thermosetting plastics or silicone rubber gels are often used, though epoxy resins are also very common.
After revision: Thermosetting plastics or silicone rubber gels are often used, though epoxy resins are also very common.