Hai all. Srinivasa Engineering Works - SEW a well established company from 2005 .we are manufacturers of ball valve,threaded valve,check valve boby & NRV valve body.we also manufacture automotive products, Since 2005 SEW continues to provide reliable, efficient and cost-effective products to reputed industries on a turnkey basis. We are committed to implementing engineering code of world standards / practice, SEW acclaims to provide best service & can undertake the responsibility for design.execute and manage a whole project with cost effective performance if you have any queries please forward them to our company. we assure you our best service and cooperation.