Forged Zhejiang Valve 1.CE,ISO9001,API6D,CQC,PDO. 2.Size 1/4"~2" 3.Class 800~2500LB A105,F5,F9,F11,F316 ... Zhejiang ValveApplication standards:1. Design and manufacture conform to: API 602;2. Connection ends conform to: 1) Socket welded dimension conform to ... ANSI B 16.11 2) Screw thread dimension conform to ANSI B 1.20.13 ...