The gear are made in China and with high quality. And we can offer all kinds of sizes and applied in most of the excavator machines. Available for CATPILLAR , HITACHI, SUMITOMO, VOLVO, KATO, KOBELCO, KOMATSU, DAEWOO, and HYUNDAI. the model as bellow: KOMATSU KATO KOBELCO HITACHI CATERPILLAR SUMITOMO HYUNDAI DAEWOO VOLVO PC30-7 HD250 SK60 EX60 E70B SH120 R260-5 DH130 VOLVO290 PC40-7 HD400JL SK60-5 EX100-1 E120B SH60 R200 DH55 VOLVO240 PC60-5/ 6 HD700-7 SK230-6 EX120-1 E200B SH100 R210/ 220-5/ 7 DH220-5 PC75 HD400SE SK07-N2 EX120-2 E240B SH120A1/ A2 R200-6 DH225-7 PC60-7 HD400/ 450 SK60-6 EX200-1 E300B SH200-1/ 2 R210-3 DH250 PC80 HD55 SK100-5 EX200-2 E311 SH200A-3 R220-5 PC100-2/ 3 HD250-7 SK120-5 EX200-5 E312 SH260 R260 PC100-5/ 6 HD450-5 SK100-6 EX200-3 E320B SH265 PC120-6 HD700-5 SK120-6 EX210-5 E320C SH280F-A PC120-3 HD700-2 SK120-3 EX210-1 E330B PC120-5 HD770SE2 SK200-1 EX200-6 PC120-6 HD770-1/ 2 SK200-2 EX083 PC200-3 HD800-5 SK200-3 PC220-3 HD1250-5 SK200-5 PC200-5 HD800-7 SK200-6 PC200-6 HD900-7 SK230-6 6D102 HD850G SK200A3 PC220-6 HD880SE2 6D102 HD900V 6D95 HD1250V1 PC210-7 SK200-1 PC220-5 SK200-2 PC220-7 SK200-3 PC200-7 SK200-5 PC300-3 SK200-6 PC300-5 SK230-6 PC300-7 SK200A3 PC350-7 PC400-3/ 5