What are the payment terms?

We accept T/T or L/C at sight. The payment structure is a 30% deposit with the balance paid prior to delivery.

What are the packing details?

Filters are sealed by film and loaded into corrugated boxes. Heavy boxes will be strapped by PP belts.

What documents will you provide?

We provide Bill of Lading, Commercial Invoice, Packing List, and Certificate of Origin to facilitate your customs clearance.

3.1 Coarse Efficiency Cardboard Frame Air Filter

Name: 3.1 Coarse Efficiency Cardboard Frame Air Filter
Brand: Guangzhou Ley&Sons Environmental Technology Co., Ltd
SKU: 2208542735

Guangdong, ChinaGuangzhou Ley&Sons Environmental Technology Co., Ltd

US$6.05

1 Piece

Sample price:US$6.05/piece.Request sample

Product profile

Customization

Available

Clapboard

without Clapboard

Filter Number

Model NO.

Coarse

Medium Material

Cotton

Efficiency

G2~G4

Filtration Grade

Pre Filter

Type

Folded Filter

Filter Element

Non-Woven Filter Cotton

Frame

Cardboard

Sealant

All-Purpose Adhesive

Filtration Efficiency

40%~90%@2μm

Available Thickness(mm) of Aluminum Prof

46,96

Max.Temperature Applicable

80℃

Max.Humidity Applicable

Cardboard:80%/ Other Frame:100%

Transport Package

Corrugated Box

Specification

595*595*46

Trademark

Ley&Sons

Origin

China

HS Code

8421392990

Key features

Rust-Proof Zinc-Coated Mesh: Surface treated with rust-proof zinc-coated welded wire mesh for durability.

High Dust Capacity: Pleated structure increases filtration area, improving dust capacity and service life.

Leak-Proof Sealing: Sealing connection at the junction prevents air leakage between filter element and frame.

Customizable Sizes: Besides standard sizes, custom sizes are acceptable for specific requirements.

Flexible Customization: Supports full customization, minor customization, and customization from samples or designs.

Company profile

Importers and ExportersFull CustomizationQuality AssuranceProduction Process Visualization

Guangzhou Ley&Sons Environmental Technology Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤0.01h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryLingjie is a combined manufacturing supplier producing air-filtration products and cleanroom equipment, with five production lines, inventory capability, and stated delivery within 15 working days in both peak and off-peak periods. It reports broad customization and ODM services, recent new-product activity, quality assurance, and multiple certifications. However, documented service and quality records are incomplete, there is no valid manufacturing contract with related subcontractors, and no overseas agents, warehouses, showrooms, or offline trade-show participation. Export experience is stated as one year, while another slice identifies domestic markets as primary. Customer reach is reported at over 10,000 enterprises and institutions, but no specific customer cases are provided.

Supplier typeThe supplier is identified as a combined company and professionally manufactures Lingjie-brand coarse, medium, fine, and ultra-fine filters, along with air showers, pass boxes, clean benches, and FFUs. This supports classification as a combined manufacturing supplier rather than a purely trading or service entity.

CertificationsThe supplier states that it holds ISO9001, OHSAS18001, EU CE, RoHS, and other international certifications. These are explicit certifications relevant to quality, occupational safety, and product compliance, although the provided information does not include certificate validity dates or scopes.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and offers broad design customization. However, it has no available SDK and only three years of total R&D engineer experience are reported, so the evidence supports product-development activity but not a clearly strong technology platform.

Production capacityThe supplier operates five production lines, has inventory capability, reports delivery within 15 working days in both peak and off-peak seasons, and has six to ten quality-control staff. Capacity governance has weaknesses because no valid contract exists with related subcontractors and the order-fulfillment status is listed only as “6,” without an explained unit or benchmark.

Customization capabilityBoth R&D and design-service records list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also explicitly provides ODM services, giving clear evidence of broad customization capability.

Product Q&A

Q:Are you a factory or trading company?

We are a factory located in Guangzhou City, Guangdong Province, China. Online verification via Teams is welcomed during working days with one hour appointment in advance during weekends. Face-to-face meetings at our factory are also welcome.

Q:Is the price on the platform authentic?

Yes, the price is authentic but applies to one specific item. Since variable specifications and sizes are available, please send an inquiry or email to get a corresponding price for your preferred item.

Q:What are the delivery terms?

We offer Ex-works, FOB Guangzhou, FOB Shenzhen, and CIF terms.

Q:How long is the guarantee?

We provide a one-year quality warranty.

Q:How long is the production lead time?

Normally within two weeks. For bulk quantities, the lead time may vary.