

橡胶(nitrile -butadiene rubber)

胶(nitrile -butadiene rubber)

橡胶(nitrile -butadiene rubber)

胶(nitrile -butadiene rubber)

橡胶(nitrile -butadiene rubber)

烯橡胶(nitrile -butadiene rubber)

烯橡胶(nitrile -butadiene rubber)

橡胶(nitrile -butadiene rubber)

烯橡胶(nitrile -butadiene rubber)