The "Kingraymachine" sprockets are widely used in many construction and track machines, such as the well-known brands KOMATSU, CATERPILLAR, HYUNDAI, SUMITOMO, HITACHI, KATO, DAEWOO etc.. The sprocket for some machinery model as below: D20 D31 D40 D50 D65 D80 D85 D155 PC40 PC60-5 PC60-6 PC100-3 PC100-5 PC200-3 PC200-5 PC300-3 PC300-5 PC300-6 PC400-3 PC400-5 PC400-6 D4D D5 D5B D6B D6D D7G D8K D8L D8N E70 E100 E110 E120 E200B 320 E240 E300 E300B 325 330 E450 EX60 EX100 EX120 EX150 EX200-1 EX200-2 EX220 EX300 EX400 UH04 SH100 SH200 SH120 SH260 S280 SH300 S430 SK04 SK07 SK60 SK100 SK120 SK200 SK220 SK300 SK320 SK330 HD250 HD400 HD450 HD550 HD700 HD800 HD900 HD1250 R130LC R200LC R210LC R290LC DH220-3 DH280 SE130 SE210 SE280