... /SH/GD/Material Carbon steel10#,15#,20#,30#,45#,Q195,Q235,Q345,16Mn,GRADE :A/B/C/DA234 WPB,A106 B,A516 ... othersProductivity1000000000Ton per yearKey to Successadvanced technique and serviceAuthenticationISO 9001:2000,API,CE,,TSG,ENCorporate ServiceDAILY AIRPORT & TOUR SERVICE/ Return Airport/Hotel ... % deposit, the balance against with the copy of B/L) carbon steel pipe elbow