Hong Kong headquarters · Two certified factories香港总部 · 两家认证工厂
Hong Kong Zhongwei is the authorized overseas distributor of Sichuan Zhongrui Electrical Equipment and Chongqing Zhongdian Cement Products. You contract with one Hong Kong company; production, testing and certificates come from the two factories.香港中維信息技術有限公司是四川中睿电气设备有限公司与重庆市中电水泥制品有限公司的境外授权经销商。您只需与一家香港公司签约，生产、检验和资质均来自两家工厂。
Product range产品范围
Standard designs to Chinese national and railway standards, or fabrication to your drawings.按中国国家标准和铁路行业标准的定型设计生产，也可按客户图纸加工。
SICHUAN ZHONGRUI
| Voltage电压等级 | 35 kV – 330 kV |
|---|---|
| Types塔型 | Suspension, angle and terminal towers; steel tube poles直线塔、转角塔、终端塔；钢管杆 |
| Steel材质 | Q345 · Q420 (to design)（按设计） |
| Standard标准 | GB/T 2694-2018 |
| Finish防腐 | Hot-dip galvanized by a qualified galvanizing partner热镀锌（由合作镀锌厂完成） |
| Capacity产能 | 60,000 t / year |
CHONGQING ZHONGDIAN · SICHUAN ZHONGRUI
| Types类型 | Reinforced, partially prestressed and prestressed; tapered and equal-diameter; square poles钢筋混凝土、部分预应力、预应力；锥形杆、等径杆；电力方杆 |
|---|---|
| Use用途 | Distribution lines, telecom lines, substation structures配电线路、通信线路、变电构架 |
| Type tested型式检验 | ZΦ310×18 (9GQ9)×T×G |
| Capacity产能 | 204,000 pcs / year (Zhongdian)（中电） |
| Accessories配套 | Stay-wire anchor blocks, chuck blocks, base plates, hardware拉线盘、卡盘、底盘、铁附件 |
CHONGQING ZHONGDIAN
| Concrete混凝土支柱 | H-section and ring-section prestressed masts, TB/T 2286-2020横腹杆式、环形预应力支柱，TB/T 2286-2020 |
|---|---|
| Steel钢支柱 | H-beam and lattice steel masts, GB/T 25020.1-2025; portal structuresH 形钢柱、格构式钢柱，GB/T 25020.1-2025；硬横跨 |
| Certification认证 | CRCC railway product certificates for all four mast types四类支柱均获 CRCC 铁路产品认证 |
| Capacity产能 | 97,200 concrete masts · 63,000 t steel / yr |
Manufacturing生产基地
Both are in the Chengdu–Chongqing region, with rail and river links to the ports of Qinzhou and Shanghai. Factory visits can be arranged.两家工厂均位于成渝地区，经西部陆海新通道通钦州港，经长江通上海港。可安排验厂。
Certificates资质证书
Copies are sent with quotations. Each certificate can be verified with the issuing body.报价时随附证书扫描件，均可向发证机构核验。
| Certificate证书 | Holder持证方 | Valid until有效期至 |
|---|---|---|
| CRCC · H-beam steel mast | Zhongdian | 2027-11-30 |
| CRCC · Lattice steel mast | Zhongdian | 2027-11-30 |
| CRCC · H-section prestressed concrete mast | Zhongdian | 2027-11-30 |
| CRCC · Ring-section prestressed concrete mast | Zhongdian | 2027-11-30 |
| ISO 9001:2015 | Zhongrui | 2029-04-14 |
| ISO 9001:2015 | Zhongdian | 2027-08-12 |
| ISO 14001:2015 · ISO 45001:2018 | Zhongrui | 2029-04-14 |
| ISO 14001:2015 · ISO 45001:2018 | Zhongdian | 2029-04-21 |
| ISO 50001:2018 | Zhongrui · Zhongdian | 2028-11-10 |
| Green Factory (GB/T 36132-2018)绿色工厂评价（GB/T 36132-2018） | Zhongrui · Zhongdian | 2029-04-08 |
| State Grid prequalification, 35–330 kV angle steel towers国家电网 35–330kV 角钢塔资格预审 | Zhongrui | 2027-06-30 |
| State Grid prequalification, distribution concrete poles国家电网配网水泥杆资格预审 | Zhongrui · Zhongdian | 2026-12-31 |
| Letters of authorization to Hong Kong Zhongwei致香港中維的产品销售授权书 | Zhongrui · Zhongdian | 2029-09-27 |
Hong Kong Zhongwei holds 13 Chinese patents on pole and mast design and production, including 4 invention patents. The two factories hold a further 19 utility model patents.香港中維持有 13 项中国专利（其中发明专利 4 项），涉及电杆、支柱的结构与生产工艺；两家工厂另持有实用新型专利 19 项。
| Patent专利名称 | Type类型 | No. | Patentee专利权人 |
|---|---|---|---|
| Anti-toppling composite utility pole for power grids一种电力电网防倒复合材料电线杆 | Invention发明 | ZL201910621427.6 | HK Zhongwei |
| Portable emergency composite utility pole一种便捷应急式复合材料电线杆 | Invention发明 | ZL201910761169.1 | HK Zhongwei |
| Concrete-filled steel tube pole for EHV transmission lines一种超高压输电线路用钢管混凝土电线杆 | Invention发明 | ZL201910937520.8 | HK Zhongwei |
| Thin-walled spun concrete-filled steel tube pole一种薄壁离心钢管混凝土电线杆 | Invention发明 | ZL201911090864.6 | HK Zhongwei |
| 9 utility models: sectional and frost-resistant poles, anti-corrosion steel columns, moulds, curing and grounding devices实用新型 9 项：分体式电杆、防冻裂环形电杆、防腐钢结构立柱、成型模具、养护设备、接地装置等 | Utility model实用新型 | 2022–2023 | HK Zhongwei |
| 19 utility models: railway and anti-wind poles, pole bases, spinning and rebar equipment实用新型 19 项：铁路用电杆、抗风防倒电杆、高铁电杆基座、离心成型及钢筋加工设备等 | Utility model实用新型 | 2020 | Zhongdian · Zhongrui |
Track record供货业绩
A selection from the factories' contract records. Full lists are available on request.以下摘自两家工厂的合同业绩，完整清单可索取。
| Project / client项目 / 客户 | Product产品 | Quantity数量 |
|---|---|---|
| Nanning–Baise second line, Nankun Railway南昆铁路南宁至百色段增建二线 | Concrete OCS masts接触网混凝土支柱 | 5,818 |
| Jiaoliu Railway electrification, Tangbao–Liuzhou焦柳铁路塘豹至柳州段电气化改造 | Concrete OCS masts接触网混凝土支柱 | 4,009 |
| Tongliao–Siping Railway electrification通辽至四平铁路电气化改造 | Concrete OCS masts接触网混凝土支柱 | 3,394 |
| Liuzhan Railway electrification黎湛铁路电气化改造 | Steel OCS masts接触网钢支柱 | 2,679 |
| Chengdu–Dazhou–Wanzhou high-speed railway成都至达州至万州铁路 | Ring masts, poles环形支柱、电杆 | 1,234 |
| State Grid Chongqing, 2025 distribution framework国网重庆 2025 年配网协议库存 | Concrete poles and accessories水泥电杆及制品 | 43,151 |
| State Grid Sichuan, 2025 framework (two lots)国网四川 2025 年协议库存（两包） | Concrete poles水泥电杆 | 11,457 |
| Tianli hot-spring resort 10 kV line, Luzhou泸州天立温泉度假区 10kV 线路 | Angle steel towers角钢塔 | 204.7 t |
How to order合作流程
Tower list, pole schedule or mast types, with destination port.塔型表、电杆明细或支柱型号，及目的港。
FOB or EXW in USD, with certificates and test reports.FOB 或 EXW 美元报价，附证书与检验报告。
Signed with Hong Kong Zhongwei, payment by T/T.与香港中維签约，T/T 付款。
Shipments begin 20 days after drawing approval and continue in batches.图纸确认后 20 天开始分批发货。
Via Qinzhou or Shanghai, whichever routing is cheaper for your port.经钦州港或上海港，按目的港选最经济路线。
Contact联系我们
We reply within one working day, Hong Kong time.香港时间一个工作日内回复。
