| 报告期 | 2024-06-30 | 2023-12-31 | 2023-06-30 | 2022-12-31 |
| 公司类型 | 通用 | 通用 | 通用 | 通用 |
| 流动资产: | | | | |
| 货币资金 | 295,577,907.68 | 226,237,138.51 | 191,212,416.01 | 178,249,151.51 |
| 应收票据及应收账款 | 205,872,933.78 | 235,499,870.85 | 206,996,607.3 | 189,158,209.19 |
| 其中：应收票据 | 6,112,072.95 | 6,400,846.11 | 7,602,078.9 | 14,432,208.9 |
| 应收账款 | 199,760,860.83 | 229,099,024.74 | 199,394,528.4 | 174,726,000.29 |
| 预付款项 | 5,649,975.18 | 6,063,991.11 | 3,216,093.3 | 17,680,663.88 |
| 其他应收款合计 | 7,273,995.39 | 9,037,813.98 | 10,978,769.47 | 3,411,605.3 |
| 存货 | 162,976,431.91 | 158,414,780.75 | 157,114,425.72 | 170,443,240.63 |
| 其他流动资产 | 5,236,206.25 | 5,529,130.68 | 5,120,266.9 | 13,062,607.66 |
| 流动资产平衡项目 | 0 | 0 | 0 | 0 |
| 流动资产合计 | 682,587,450.19 | 640,782,725.88 | 574,638,578.7 | 572,005,478.17 |
| 非流动资产: | | | | |
| 固定资产 | 360,449,331.5 | 371,769,440.23 | 341,547,456.79 | 338,742,318.84 |
| 在建工程 | 12,438,248.63 | 11,897,427.85 | 39,091,938.33 | 17,357,364.02 |
| 无形资产 | 59,185,945.3 | 59,921,029.58 | 60,668,273.53 | 61,386,717.32 |
| 长期待摊费用 | 5,727,638.97 | 3,015,116.26 | 2,929,509.5 | 2,086,757.18 |
| 递延所得税资产 | 24,182,102.66 | 23,124,410.43 | 23,855,186.07 | 25,962,572.96 |
| 其他非流动资产 | 2,484,214.5 | 3,059,360.85 | 793,710.67 | 10,932,580.33 |
| 非流动资产平衡项目 | 0 | 0 | 0 | 0 |
| 非流动资产合计 | 464,467,481.56 | 472,786,785.2 | 468,886,074.89 | 456,468,310.65 |
| 资产平衡项目 | 0 | 0 | 0 | 0 |
| 资产总计 | 1,147,054,931.75 | 1,113,569,511.08 | 1,043,524,653.59 | 1,028,473,788.82 |
| 流动负债: | | | | |
| 短期借款 | - | - | 20,015,750 | 30,043,033.33 |
| 交易性金融负债 | - | 488,600 | - | - |
| 应付票据及应付账款 | 108,123,874.12 | 130,620,991.28 | 116,976,191.09 | 130,230,437.41 |
| 应付账款 | 108,123,874.12 | 130,620,991.28 | 116,976,191.09 | 130,230,437.41 |
| 合同负债 | 6,195,035.17 | 4,324,738.66 | 5,884,691.78 | 8,850,318.7 |
| 应付职工薪酬 | 15,148,869.05 | 18,687,279.28 | 13,583,488.71 | 22,175,336.01 |
| 应交税费 | 6,286,919.65 | 10,375,561.07 | 6,578,897.37 | 9,871,329.96 |
| 其他应付款合计 | 1,112,172.85 | 1,201,869.47 | 1,550,160.05 | 1,140,593.34 |
| 其他流动负债 | 120,392.04 | 92,759.99 | 164,023.92 | 878,356.18 |
| 流动负债平衡项目 | 0 | 0 | 0 | 0 |
| 流动负债合计 | 136,987,262.88 | 165,791,799.75 | 164,753,202.92 | 203,189,404.93 |
| 非流动负债: | | | | |
| 递延收益 | 36,464,585.99 | 38,236,162.17 | 40,013,063.42 | 41,797,449.19 |
| 递延所得税负债 | 621,695.72 | 189,320.52 | 192,058.87 | 194,797.22 |
| 非流动负债平衡项目 | 0 | 0 | 0 | 0 |
| 非流动负债合计 | 37,086,281.71 | 38,425,482.69 | 40,205,122.29 | 41,992,246.41 |
| 负债平衡项目 | 0 | 0 | 0 | 0 |
| 负债合计 | 174,073,544.59 | 204,217,282.44 | 204,958,325.21 | 245,181,651.34 |
| 所有者权益(或股东权益): | | | | |
| 实收资本(或股本) | 90,000,000 | 90,000,000 | 90,000,000 | 90,000,000 |
| 资本公积 | 352,815,497.38 | 350,129,056.15 | 349,688,764.72 | 347,615,211.15 |
| 盈余公积 | 44,798,326.55 | 44,798,326.55 | 31,665,503.56 | 31,665,503.56 |
| 未分配利润 | 485,367,563.23 | 424,424,845.94 | 367,212,060.1 | 314,011,422.77 |
| 归属于母公司股东权益平衡项目 | 0 | 0 | 0 | 0 |
| 归属于母公司股东权益合计 | 972,981,387.16 | 909,352,228.64 | 838,566,328.38 | 783,292,137.48 |
| 股东权益平衡项目 | 0 | 0 | 0 | 0 |
| 股东权益合计 | 972,981,387.16 | 909,352,228.64 | 838,566,328.38 | 783,292,137.48 |
| 负债和股东权益合计 | 1,147,054,931.75 | 1,113,569,511.08 | 1,043,524,653.59 | 1,028,473,788.82 |
| 公告日期 | 2024-10-17 | 2024-05-13 | 2024-01-11 | 2023-02-28 |
| 审计意见(境内) | 标准无保留意见 | 标准无保留意见 | 标准无保留意见 | 标准无保留意见 |