good quality, per API or customized 1)Tech:Forged,casted2)Material: carbon steel,stainless steel,alloy steel and etc. Standard: ANSI, JIS,DIN, BS, UNI etc3) Pressure:a. Class150/300/600b. JIS 5K/10K/16K20Kc. PN6/10/16/25/404):Range of application:heating,petroleum,gas and etc.5) Packing:wooden case or as per customers' requirement