... produce pressure pipeline unit for oil, chemical industry, and electricity group. Meanwhile, we have become science technology enterprise and reliable supplier ... , SCH160, XXS 3, Dimension: 1/2" to 48" 4, Material: carbon steel A234 WPB WPC A105 A106, alloy steel, stainless steel ... B23137,Threaded end: NPT/BSTPCertificate: ISO ,API , Delivery time: 20days Carbon steel elbow