... 3)ASTM A105 ,RST37.2,S235 JR G2 All the products mainly export to European Market , ... Tong Pressure & Forging company LTD . engaged inforging of varieties of flange, axis , disk ,and unconventional parts, our ... -Merkblatt WO/TRD100 and PED. We have approved the audit of ISO9001-2000 . We have exported flanges to ... partner in the field of flanges and forgings .If you have inquire list ,please send to us ...