Procurement Clarity
Frequently Asked Questions for B2B Importers
Detailed answers to technical, commercial, and logistic questions raised by architects, developers, and wholesale distributors when sourcing CE-certified mosquito net doors.
Q1What specific criteria define a valid CE certificate for aluminum mosquito net doors?
Under the Construction Products Regulation (EU CPR No 305/2011) and EN 14351-1 / EN 13561, a valid CE marking verifies that the complete door assembly has undergone factory production control (FPC) and type testing for wind resistance, operating forces, mechanical strength, and safety in use. DERCHI provides verified Declaration of Performance (DoP) documents and third-party lab test reports for every batch.
Q2What is the technical difference between 304 and 316 stainless steel security mesh?
While grade 304 provides outstanding baseline tensile resistance for inland urban projects, grade 316 contains 2% to 3% molybdenum, offering superior resistance to pitting and crevice corrosion in chloride-heavy coastal and marine environments. For projects within 5km of seawater or in high-humidity tropical areas, marine-grade 316 wire mesh is strongly recommended.
Q3Can mosquito net door assemblies be combined with multi-point security locking systems?
Yes. Our hinged and sliding security screen doors incorporate multi-point European groove mortise locks featuring top, side, and bottom mushroom cams or hook bolts operated via single-lever handles or biometric digital smart locks, achieving EN 1627 RC2 burglar-resistant ratings while ensuring smooth insect exclusion.
Q4How does the factory address wind-load deflection in large sliding or bifold screen doors?
For oversized spans exceeding 2,800mm in height, we utilize heavy-duty mullion structural reinforcement profiles with steel core inserts. Screen meshes are secured within the aluminum profile channel using mechanical clamping plates and self-tapping stainless screws rather than friction rubber splines, preventing screen blowout under gale-force wind pressures.
Q5What custom finishes and powder coating options are available?
We offer architectural finishes including Qualicoat-certified electrostatic polyester powder coatings (standard RAL palette, matte, sand-textured, and metallic tones), fluorocarbon PVDF for aggressive coastal UV conditions, high-definition Italian heat-transfer wood grain, and architectural anodized finishes (15μm to 25μm thickness).
Q6What is the standard production lead time and minimum order quantity (MOQ)?
Standard production lead time is 25 to 35 business days from final CAD shop drawing sign-off and deposit receipt. Because all projects are fabricated to bespoke door schedules, our baseline MOQ starts at 50 square meters (or 1 full container load for mixed door schedules), accommodating both luxury residential villas and multi-unit commercial developments.
Q7How are products protected against freight damage during ocean container transit?
Every door panel is wrapped in protective electrostatic PE film, reinforced with high-density corrugated corner protectors, sealed in moisture-barrier bubble wrap, and crated inside fully enclosed, fumigated marine plywood cases. Crates are banded with steel strapping to withstand maritime humidity and multiple transshipment handlings.
Q8Does DERCHI support international OEM/ODM projects and private label packaging?
Yes. We act as an OEM/ODM manufacturing partner for major door brands, distributors, and construction syndicates globally. We accommodate custom aluminum extrusion tooling, proprietary hardware integration, laser-etched private branding on profile corners, and custom-printed shipping carton packaging.