... HS Code:73181600 2.Size:M2-M52 3.Material:Steel,SS,Brass Tianjin Ruihuang Trade Co.,Ltd ... that is professionally engaged in different kinds of material (like carbon steel,alloy steel,stainless steel,brass ... GB,DIN,ANSI,BS,we also can provide material certificate,test report for the goods,and we ... ’s made2. Validity:7 days,depend on the material cost change3. Delivery time:35 days after receipt advance ...