Zhejiang Longda Water Technologies Co.,Ltd, established in 1993. Professional custom Built-ln Valve Manufacturers and OEM/ODM Built-ln Valve . In 1998, we built the 1st Standard Plant(worshop) and Joint venture with Spanish company. To Set up QC System under the guidance of Spanish technical Team & Develop more products suitable for European Market. Cooperation with Spanish company expired in 2008 and soon we set up the Longda Group in 2010. Longda Built-ln Valve are mainly apply to the field of the controlling system for the Hot/Cold water, heating, gas and chemical etc. The products are mainly exported to West European Countries, African countries etc. We have about 220 employees including more than 50 powerful technical force. We also OEM/ODM. Bulk order and custom Built-ln Valve from our factory and get cheap price. All these valves perform well particular in European EU Market.