Ningbo Kaixuan (宁波凯旋消防设备) manufactures fire brigade hydrant hardware — instantaneous delivery hose couplings, standpipes, landing valves, hose cabinets and extinguishers — at a single plant in Yuyao, from a business tracing its origin to 1963. Its couplings and standpipes hold LPCB certificate 1153f to BS 336:2010 alongside an active BSI Kitemark licence, KM 726502, to the same standard. Dual LPCB and Kitemark cover to BS 336 is rare among mainland Chinese sources and matters where UK or Gulf projects specify to BS 336 and BS 5041.