| 报告期 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 |
| 公司类型 | 通用 | 通用 | 通用 | 通用 |
| 流动资产: | | | | |
| 货币资金 | 658,831,240.28 | 598,543,832.89 | 550,779,450.27 | 539,858,182.59 |
| 应收票据及应收账款 | 289,073,663.21 | 315,007,911.39 | 343,263,896.22 | 387,296,427.55 |
| 其中：应收票据 | 260,812,100.76 | 267,435,939.55 | 313,246,347.56 | 353,583,283.63 |
| 应收账款 | 28,261,562.45 | 47,571,971.84 | 30,017,548.66 | 33,713,143.92 |
| 应收款项融资 | 54,739,583.83 | 34,313,544.53 | 39,630,832.68 | 23,044,478.49 |
| 预付款项 | 1,512,097.04 | 2,143,356.19 | 2,730,857.83 | 3,818,412.92 |
| 其他应收款合计 | 52,562.37 | 56,215.61 | 56,204.57 | 56,577.08 |
| 存货 | 31,925,232.96 | 55,003,894.52 | 42,298,805.46 | 50,524,112.22 |
| 其他流动资产 | 2,179,245.27 | 1,886,792.45 | 1,886,792.45 | - |
| 流动资产合计 | 1,038,313,624.96 | 1,006,955,547.58 | 980,646,839.48 | 1,004,598,190.85 |
| 非流动资产: | | | | |
| 固定资产 | 256,292,991.27 | 259,223,250.82 | 267,703,319.09 | 260,363,624.02 |
| 在建工程 | 31,841,775.39 | 25,802,065.94 | 19,448,444.29 | 34,212,842.82 |
| 无形资产 | 43,008,101.06 | 43,413,469.43 | 41,390,655.3 | 41,687,773.49 |
| 递延所得税资产 | 10,654,042.21 | 10,052,169.52 | 10,882,912.43 | 8,707,108.32 |
| 其他非流动资产 | 161,860 | 1,476,364.4 | 2,059,666.57 | 1,143,559.3 |
| 非流动资产合计 | 341,958,769.93 | 339,967,320.11 | 341,484,997.68 | 346,114,907.95 |
| 资产总计 | 1,380,272,394.89 | 1,346,922,867.69 | 1,322,131,837.16 | 1,350,713,098.8 |
| 流动负债: | | | | |
| 短期借款 | 3,106,051.95 | - | 2,096,168.8 | 2,096,168.8 |
| 应付票据及应付账款 | 301,391,244.78 | 344,707,332.93 | 368,032,294.05 | 422,607,185.02 |
| 其中：应付票据 | 206,351,596.44 | 249,301,015.9 | 289,361,340.28 | 295,729,187.51 |
| 应付账款 | 95,039,648.34 | 95,406,317.03 | 78,670,953.77 | 126,877,997.51 |
| 合同负债 | 16,699,620.57 | 24,344,535.28 | 39,631,930.38 | 44,921,186.39 |
| 应付职工薪酬 | 19,049,213.09 | 10,178,100.7 | 6,418,683.94 | 23,146,200 |
| 应交税费 | 19,576,060.86 | 16,725,084.85 | 16,685,547.74 | 15,061,136.85 |
| 其他应付款合计 | 14,550,297.24 | 12,852,385.28 | 14,080,079.51 | 12,270,734.39 |
| 其他流动负债 | 24,840,575.84 | 25,249,038.43 | 15,694,533.01 | 23,505,807.49 |
| 流动负债合计 | 399,213,064.33 | 434,056,477.47 | 462,639,237.43 | 543,608,418.94 |
| 非流动负债: | | | | |
| 递延收益 | 17,622,480.28 | 16,379,372.1 | 16,829,463.18 | 12,249,556.77 |
| 非流动负债合计 | 17,622,480.28 | 16,379,372.1 | 16,829,463.18 | 12,249,556.77 |
| 负债合计 | 416,835,544.61 | 450,435,849.57 | 479,468,700.61 | 555,857,975.71 |
| 所有者权益(或股东权益): | | | | |
| 实收资本(或股本) | 98,000,000 | 98,000,000 | 98,000,000 | 98,000,000 |
| 资本公积 | 61,019,214.42 | 58,761,283.23 | 56,503,358.04 | 54,245,432.85 |
| 专项储备 | 11,503,241.32 | 10,154,625.31 | 8,791,308.76 | 11,264,020.65 |
| 盈余公积 | 49,000,000 | 49,000,000 | 49,000,000 | 49,000,000 |
| 未分配利润 | 743,914,394.54 | 680,571,109.58 | 630,368,469.75 | 582,345,669.59 |
| 归属于母公司股东权益合计 | 963,436,850.28 | 896,487,018.12 | 842,663,136.55 | 794,855,123.09 |
| 股东权益合计 | 963,436,850.28 | 896,487,018.12 | 842,663,136.55 | 794,855,123.09 |
| 负债和股东权益合计 | 1,380,272,394.89 | 1,346,922,867.69 | 1,322,131,837.16 | 1,350,713,098.8 |
| 公告日期 | 2025-08-19 | 2025-05-06 | 2025-02-10 | 2024-11-12 |
| 审计意见(境内) | | | 标准无保留意见 | |