Haina (Fuzhou) Import & Export Co., Ltd. is a compound enterprise of production and trading, and has so far invested in six manufactories. Our company has modern techniques, with advanced semi-automatic production line fueled by natural gas. Our products are fired by energy-saving oxidizing flame. Haina (Fuzhou) Import & Export Limited Company is a manufacturer and trader specialized in the research, development and production of porcelain disc suspension insulators for high voltage under ...