About Us Hangzhou Xinglong Pump Co.,Ltd. is headquartered in northern suburb of Hangzhou. Our company has an innovative R&D team. It has been rated as 鈥淗igh-tech Enterprise鈥? In addition,we have passed the CCS quality system certification.Xinglong is the qualified supplier of China National Petroleum Corporation,a vice chairman unit of Screw Pump Professional Committee, a drafting unit about (HJ2524-2012锛汮B/T8091-2014锛汮B/T8644-2017锛汮B/T12798-2016).Our company has the qualification of Zhejiang province R&D center and independent intellectual property rights for core products. High Temperature Twin Screw Pump manufacturers website:http://www.china-screw-pump.com/