Autocar Parts Ductile Cast Iron 65-45-12 Grade Material Custom Casting Manufacturer Product Description and Process Autocar Parts Ductile Cast Iron 65-45-12 Grade Material Custom Casting Manufacturer Production process: green sand casting process pre-coat
With a slim profile, this product is designed to use in the small or medium windows or even the conceal installation. Very quiet operation makes it ideal for day to day ventilation. It is extensively used in natural ventilation or light weight roof-light.
Normal temperature acrylic filter cloth produce by Germany international advanced equipment and select excellent flow fine denier fiber ,mixing the fiber uniform and through surface treatment or coating the protective layer ,it has excellent acid , alkali