This our customer from africa come to our factory to visit us .our boss meet our customer ,they talk a plan for the cusomter's market ,our boss said ,we will give our customer more and more support to impove the market . our customer thanks million for our cooperation ,and sign the cooperation contract for the steel pipe .this time he ordered 3000 tons for square steel pipe .the detail size is 20*20*1.2 and 30*30*1.8 .