Material:High Chrome Alloy Casting Iron Lifetime:4000 hours; Hardness: HRC60-72; Rubber O Ring:NBR,VMQ,HNBR,FPM Application: 1. All series domestic brand crawler bulldozers as: SHANTUI,XUANGONG,PENGPU,ZOOMLION, LONKING, YISHAN, XGMA, LIUGONG,etc. 2. All series domestic 1.3~180 ton crawler bulldozers and rubber-tyred hydraulic excavators. 3. Komatsu D50, D60, D80, D85, D155, D355,CAT D58, D60, D7G, D8K, D9L, D10H crawler bulldozers. 4. German R902-R992 and CAT, Komatsu series hydraulic excavators. 5. Various models of loaders, pavers, cranes, concrete mixer, Shearer,tunneling machine and scraper conveyor,etc. P/N D1 D2 H FS4700 500 470 50 FS5055 533.4 505.5 44 FS5065 534 506.5 43 FS5070 547 507 60 FS5300 560 530 50 FS5390 568 539 39 FS5550 590 555 42 FS5590 590 559 50 FS5600 600 560 42 FS5800 608 580 43.6 FS5910 623 591 50 FS5960 628 596 50 FS6670 700 667 44 FS7180 750 718 50 FS7300 768 730 50 FS7450 785 745 50 FS8340 886 834 80 FS11750 1236 1175 80 FS13720 1425 1372 80 inner box and outer carton