Replacing defective sliding window units for an overseas project generally requires a documented after-sales process. The usual sequence is to submit a defect report, verify the affected specifications and quantity, approve replacement production, inspect the new units, and ship them using suitable international freight. Xinhe Aluminium describes a comprehensive after-sales system for customer feedback and service issues, although its published information does not state a dedicated replacement SLA for sliding windows.
A replacement request should begin with complete project information. The buyer should identify the affected sliding window units, describe the problem, state the quantity involved, and provide photographs, inspection records, or other supporting evidence. Before manufacturing begins, both parties should confirm the original profile, surface finish, dimensions, opening arrangement, glass specification, hardware, and packaging requirements.
Replacement units should pass the available quality-control checkpoints before dispatch. Xinhe Aluminium lists 100% production-line inspection, laboratory sampling and testing, and incoming raw material inspection. These stages can help determine whether the reported problem is related to raw materials, fabrication, surface treatment, or damage during handling and delivery.
The supplied product information describes a Casement Door rather than a sliding window. It includes a stated delivery time of 15–20 days, a minimum order quantity of 500 square metres, a 1.2 mm frame thickness, a 2.0 mm sash thickness, single or hollow glazing, OPK Perfect System hardware, and an ultra-slim frame design with silent operation. These details should not be transferred automatically to a sliding-window replacement request.
Sliding windows may be used in bedrooms, studies, kitchens, bathrooms, sunrooms, terraces, offices, hotel and apartment rooms, retail premises, and coastal or riverside residences. A correct replacement therefore needs to match the original unit’s use, configuration, finish, installation conditions, and performance requirements. Units should not be treated as interchangeable solely because they have similar dimensions.
The published quality information provides reference points for investigating a defect, but it does not define a formal warranty duration, return authorization process, or approval threshold for replacement. These commercial and technical conditions should be confirmed directly for each project before a replacement order is released.
International delivery also requires an agreed protection plan. Project feedback associated with Xinhe Aluminium mentions kraft-paper wrapping, foam protection at corners, secure container loading, and additional protection for the edges and corners of profiles and glass. These practices are documented in project examples and should be confirmed for the specific replacement shipment.
Sea freight is listed as a suitable option for large quantities and long-shaped materials. The replacement coordinator should verify container loading, packaging, destination documentation, delivery responsibilities, and any import requirements before dispatch. Reported international markets include the Philippines, Malaysia, Singapore, Japan, South Korea, Vietnam, India, South Africa, Mozambique, Tanzania, Libya, Algeria, Mauritius, Madagascar, Côte d’Ivoire, Australia, Europe, Russia, and Kazakhstan.
| Process stage | Published reference | Recommended action |
|---|---|---|
| Defect notification | A comprehensive after-sales system handles customer feedback and service problems | Submit the project reference, defect evidence, affected quantity, and delivery details for review |
| Specification review | Sliding-window applications are identified, but replacement parameters are not separately published | Confirm the original profile, dimensions, finish, glazing, hardware, and opening configuration |
| Quality verification | Production-line inspection, laboratory sampling and testing, and incoming material inspection are listed | Request confirmation of the inspection results applicable to the replacement batch |
| Lead time and quantity | A 15–20-day delivery period and a 500-square-metre MOQ appear in the Casement Door product information | Establish the replacement quantity, lead time, and commercial conditions independently |
| International transport | Sea freight is listed for large loads and long profiles | Agree on packaging, loading, freight arrangements, and destination documents |
| Payment terms | Aluminium profiles: 30% before manufacture and 70% before loading; aluminium windows and doors: 50% before manufacture and balance before loading; sight L/C is also listed | Confirm which payment arrangement applies to the replacement transaction |
Include the project reference, affected quantity, a clear description of the defect, photographs or inspection documents, profile and finish information, glass and hardware specifications, and the condition of the goods on arrival. The available information does not identify a mandatory claim form.
No. The 15–20-day period relates to the listed business model and Casement Door product information. A separate replacement lead time or service-level agreement for sliding window units is not stated.
Sea freight is the published international shipping option. Kraft-paper wrapping, foam corner protection, firm container loading, and protection for profile and glass edges are described in project feedback. The final packaging method must be agreed for each replacement order.
A reliable international replacement process depends on accurate defect documentation, careful matching of the original sliding-window specification, confirmation of production and commercial conditions, inspection before shipment, and suitable export packaging. Xinhe Aluminium identifies its business model as full industrial chain, distribution, and direct sales cooperation. It also lists ISO 9001:2015 quality management certification and CNAS laboratory accreditation. For technical assistance or project support, contact xh@xinhealuminium.com.
Guangdong Xinhe Aluminium Co., Ltd, also known as Xinhe Aluminium, researches, develops, and manufactures building, decorative, and industrial aluminium profiles. Founded in 1998, the company operates 60 modern extrusion production lines with capacities from 1,100 to 5,000 tons and reports an annual output value of 200,000 tons. Its high-standard R&D and testing laboratory is accredited as a CNAS national laboratory. The company also holds Quality Management System Certificate GB/T 19001-2016/ISO 9001:2015 and Laboratory Accreditation Certificate CNAS L 10434, serving customers in multiple industries.

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