1.Custom-built pipe angle, pipe bend, elbow bend pipe. 2.silical sol technique. 3.Standard:ASTM,AISI,DIN,JIS ... and refractory steel of various specifications.3. Technique: silica sol process.4. Standard: According to specific requirements.5. Weight range: from ... etc..9. Products: valve, flange, elbow, screw nut, screw bolt, pipe fitting, impeller, coupling, pump parts and so on.