Takestan Systems Grou is a manufacturer of gas, oil and petrochemical equipment in iran and have inquiry for the followoing items :1- hot rolled steel plate API 5L garde 2- Seamless steel pipe ASTM A53 , 4&＃39;&＃39;3- diffferntial pressure gauge 4- Aluminum stainless steel bodya 0-30 PSID 5- pressure rateing 2000 psig