1. product name: Slip-on welding flange;welding nece flange;socket welding flange;threaded flange;lapped flange;blind ;spectacle blind,etc.

2. size range: From ½” up to 60” 

3. wall thickness: SCH STD, XS, XXS, SCH 10 ~ SCH 160

4. standard: ANSI, ISO, JIS, DIN, BS,GB, SH, HG,QOST,ETC.

5. certificate: ISO 9001:2008