precision casting pipe elbow 1.material:stainless steel 304,316,430,201 ect or as your demand 2.technique:investment casting precision casting pipe elbow1. Custom-built connector band, flanged bend, elbow piece.2. Available material: stainless steel, carbon steel and refractory steel of various specifications.3. Technique: silica sol process.4. Standard: According to specific requirements.5. ...