... 3,weight of single piece between 50kg and 5t 4,304 heavy-duty flange Packaging & Delivery Packaging Detail:wooden package Non ... Jiangsu HenLi high pressure cylinder Inc., LTD • Shanghai zhenhua heavy industry changxing precision casting co., LTD • Shanghai N - ... ,5CrNiMo,15CrNiMo,20CrNiMo,35CrMo,40CrNiMo,etc.4, accept processing on giving materials. 5, excellent heat treatment. 304 heavy-duty flange