Changzhou Ganning Building Materials Limited Company focused on sun-shading product manufacturing, sunshade products factory set in the development, production, sales, and Sun industry one of the most influential manufacturers in our country. Company has the  professional and technical capacity, we have rich experience, strong production capacity and sales network ..     Changzhou Ganning Building Materials Limited company main products is hollow shutter, hollow glass. Hollow shutter is made byhigh quality double-layer toughened glass composite glass composite imported aluminum foil and single-handle magnetic control mechanism. The advantage is energy-saving, anti - pollution anti - pollution - proof noise insulation and so on. constantly products created new of concept, on international popular of shade industry system also has enough of market understand, unique created spirit, to makes our companyornaments get industry of praise.