Longxingdi company is a leading manufacturer which specializes in developing & manufacturing Auto Air-conditioning Thermostatic Expansion valve and relevant car spare parts of aluminium alloy and brass alloy etc. The products are in accordance with QC/T standard. Longxingdi brand products has excellent capability and outstanding quality with great various and complete specifications. On "Pure quality to live, Developing with technical Creating , Supplying quality services to clients" is our business concept on long term, We should run a top leading enterprise.