... of single piece between 50kg and 5t 4,304 heavy-duty flange Packaging & Delivery Packaging Detail:wooden package ... Jiangsu HenLi high pressure cylinder Inc., LTD • Shanghai zhenhua heavy industry changxing precision casting co., LTD • Shanghai N ... . 2, material of steel type of 15#,20#,25#,30#.35#,40#,45#,46#,etc.according to customers ... materials. 5, excellent heat treatment. 304 heavy-duty flange