1. standard: ANSI,JIS,DIN,GB,BS,EN. 2. size :DN15~DN600 3. Thickness :2.8~100mm 4. Certificate : ISO9001: ... price. 1. Material ; carbon steel ,alloy steel ,stainless steel . 2. Size: DN15~DN100 3. Wall thickness: SCH10~SCH160,STD,XS,XXS ... -pressure/ butt welded/ welded and seamless pipe fitting ,such as tee, cross, cap, bend,