... china; 4,perfect technology; 5,good after sale service. methyl hydrogen silicon oil 1.60%CAS No. : 63148-57-2Size: TH ... -202 Main Technical ParametersItemIndexValue of hydrogen (%)1.60Viscosity (25°C,mm2/s)25~30Refractive index (n25D ... .cross-linking agent, can be used in making into methyl hydrogen silicone oil withhydrogen content below 1.00%, and other kinds ...