globe valve 4 inch manufacturers Brand Introduction Our Team Product Application Contact us Kaigao Industrial Technology Co., Ltd Kaigao Industrial Technology Co., Ltd was established in 2020 with the following investors: Kaifeng High and Meddle Pressure Valve Co., Ltd., Kaifeng Dongli High Pressure Valve Casting Co., Ltd. and Kaifeng Ruiwei Fluid Technology Service Co. The main business...