

橡胶(nitrile -butadiene rubber)

橡胶(nitrile -butadiene rubber)

二烯橡胶(nitrile -butadiene rubber)

二烯橡胶(nitrile -butadiene rubber)

橡胶(nitrile -butadiene rubber)

胶(nitrile -butadiene rubber)
丁二烯橡胶(nitrile -butadiene rubber)
丁二烯橡胶(nitrile -butadiene rubber)

橡胶(nitrile -butadiene rubber)