| 报告期 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 |
| 公司类型 | 通用 | 通用 | 通用 | 通用 |
| 流动资产: | | | | |
| 货币资金 | 113,630,825.88 | 158,439,984.59 | 160,230,913.9 | 117,187,272.39 |
| 应收票据及应收账款 | 135,035,540.77 | 97,647,513.77 | 138,500,514.31 | 174,871,024.21 |
| 应收账款 | 135,035,540.77 | 97,647,513.77 | 138,500,514.31 | 174,871,024.21 |
| 应收款项融资 | 10,581,385.04 | 13,341,129.81 | 16,763,479.86 | 18,506,754.87 |
| 预付款项 | 1,723,372.44 | 7,842,104.35 | 2,363,820.38 | 1,328,131.21 |
| 其他应收款合计 | 5,218,776.91 | 6,624,827.02 | 6,756,862.1 | 3,798,124.9 |
| 存货 | 333,095,822 | 308,162,179.7 | 327,708,631.6 | 294,880,809.47 |
| 合同资产 | 555,492.58 | 2,386,574.35 | 2,716,520.15 | 3,922,920.15 |
| 其他流动资产 | 6,737,349.15 | 5,587,716.27 | 11,943,032.35 | 7,141,780.87 |
| 流动资产平衡项目 | 0 | 0 | 0 | 0 |
| 流动资产合计 | 688,870,806.4 | 610,429,422.17 | 666,996,849.92 | 621,901,020.52 |
| 非流动资产: | | | | |
| 固定资产 | 216,414,655.24 | 223,192,530.33 | 227,375,639.17 | 232,669,184.94 |
| 在建工程 | 10,006,652.42 | 5,073,564.95 | 657,187.39 | 776,887.39 |
| 使用权资产 | 813,414.87 | 1,163,104.71 | 1,512,794.55 | 1,862,484.38 |
| 无形资产 | 56,456,913.81 | 52,745,994.85 | 53,002,019.11 | 53,319,637.39 |
| 长期待摊费用 | 1,012,707.81 | 1,190,760.27 | 1,342,224.3 | 1,536,151.43 |
| 递延所得税资产 | 10,583,494.8 | 10,971,018.68 | 11,444,525.21 | 12,919,454.31 |
| 其他非流动资产 | 336,662.75 | 336,662.75 | - | - |
| 非流动资产平衡项目 | 0 | 0 | 0 | 0 |
| 非流动资产合计 | 295,624,501.7 | 294,673,636.54 | 295,334,389.73 | 303,083,799.84 |
| 资产平衡项目 | 0 | 0 | 0 | 0 |
| 资产总计 | 984,495,308.1 | 905,103,058.71 | 962,331,239.65 | 924,984,820.36 |
| 流动负债: | | | | |
| 短期借款 | 99,019,764.86 | 70,366,712.91 | 122,307,013.89 | 169,728,048.33 |
| 交易性金融负债 | - | - | 20,323.99 | - |
| 应付票据及应付账款 | 241,789,796.11 | 203,837,115.15 | 258,111,748.77 | 199,503,458.08 |
| 其中：应付票据 | 67,596,439.69 | 93,927,489.1 | 86,910,982.54 | 45,949,612.04 |
| 应付账款 | 174,193,356.42 | 109,909,626.05 | 171,200,766.23 | 153,553,846.04 |
| 合同负债 | 7,026,494.63 | 15,393,384.72 | 8,840,353.81 | 9,369,720.36 |
| 应付职工薪酬 | 12,402,124.5 | 18,981,726.89 | 14,910,944.53 | 13,919,775.93 |
| 应交税费 | 12,148,792 | 14,874,928.68 | 3,485,519.56 | 2,767,021.64 |
| 其他应付款合计 | 2,997,325.45 | 2,444,746.23 | 2,264,169.49 | 3,130,861.18 |
| 一年内到期的非流动负债 | 616,532.57 | 731,392.85 | 1,297,987.16 | 1,447,882.68 |
| 其他流动负债 | 3,949,852.27 | 2,043,339.86 | 5,511,096.85 | 4,371,597.25 |
| 流动负债平衡项目 | 0 | 0 | 0 | 0 |
| 流动负债合计 | 379,950,682.39 | 328,673,347.29 | 416,749,158.05 | 404,238,365.45 |
| 非流动负债: | | | | |
| 预计负债 | 2,192,963.51 | 2,291,665.58 | 4,012,875.38 | 3,875,539.59 |
| 递延收益 | 4,379,424 | 4,532,928 | 4,686,432 | 4,839,936 |
| 递延所得税负债 | 524,054.81 | 737,318.47 | 630,975.33 | 778,771.65 |
| 非流动负债平衡项目 | 0 | 0 | 0 | 0 |
| 非流动负债合计 | 7,096,442.32 | 7,561,912.05 | 9,330,282.71 | 9,494,247.24 |
| 负债平衡项目 | 0 | 0 | 0 | 0 |
| 负债合计 | 387,047,124.71 | 336,235,259.34 | 426,079,440.76 | 413,732,612.69 |
| 所有者权益(或股东权益): | | | | |
| 实收资本(或股本) | 64,444,463 | 64,444,463 | 64,444,463 | 64,444,463 |
| 资本公积 | 113,469,948.25 | 113,469,948.25 | 113,288,126.33 | 113,288,126.33 |
| 盈余公积 | 32,222,231.5 | 32,222,231.5 | 32,222,231.5 | 32,222,231.5 |
| 未分配利润 | 387,311,540.64 | 358,731,156.62 | 326,296,978.06 | 301,297,386.84 |
| 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 | 597,448,183.39 | 568,867,799.37 | 536,251,798.89 | 511,252,207.67 |
| 股东权益平衡项目 | 0 | 0 | 0 | 0 |
| 股东权益合计 | 597,448,183.39 | 568,867,799.37 | 536,251,798.89 | 511,252,207.67 |
| 负债和股东权益合计 | 984,495,308.1 | 905,103,058.71 | 962,331,239.65 | 924,984,820.36 |
| 公告日期 | 2025-04-30 | 2025-03-25 | 2024-11-07 | 2024-08-28 |
| 审计意见(境内) | | 标准无保留意见 | | 标准无保留意见 |