Good quality Concave Cap - Dustproof-Protective-Rubber cap – Nandi Yanlong

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Our enterprise since its inception, often regards solution excellent as enterprise life, continually strengthen output technology, enhance product high quality and continually strengthen organization total high-quality administration, in strict accordance using the national standard ISO 9001:2000 for Horn Surround For Sub Woofers , 13"Speaker Cone , Paper Cone For Speaker Parts , To acquire a consistent, profitable, and constant growth by getting a competitive advantage, and by continuously increasing the value added to our shareholders and our employee.
Good quality Concave Cap - Dustproof-Protective-Rubber cap – Nandi Yanlong Detail:

Waterproof, dustproof, durable,  multiple shapes optional(Concave type,Convex type,etc)

Application Horn unit, especially bass or subwoofer unit
Material Paper, cloth, non-woven cloth, metal film
Hardness 40~85°
Thickness Accept customized
Shape Round, Oval, Rectangle,concave,convex,Accept foreign molds ,Support customize molds
Color As requested by clients
Feature Anti-aging, Waterproof, Durable, Pliable
Certification ISO9001,IATF16949,ISO14001
Capacity 40000pcs/month

The dust cap is used in the daily use of the woofer unit.

1.Dust cap prevent dust particles from falling into the voice coil,

2.Design of dust caps do affect the voice coil,thus cause abnormal pronunciation of the horn unit.

3.Design of dust caps do affect the pronunciation effect of the horn.For example, the material of the dust cap of the horn is mostly paper, cloth, non-woven cloth and metal film, which can reinforce the drum paper.

DIAMφa Minor DIAMφb Height Thickness
φa≤90 ±0.2 φb≤150 ±0.2 H≤12 ±0.2 Mylar 0.05/0.075/0.10/0.125/0.188
90<φa≤150 ±0.3 φb>150 ±0.3 12<φA≤16 ±0.3 PP 0.25/0.30/0.35/0.40/0.45/0.50
φa>150 ±0.4   H>16 ±0.4 Paper Show as measure

Payment method: Pay 30% for deposit,70% before shippment.

Accept US dollars, RMB, if other currencies, please consult before paying.

Term:EXW/FOB/CIF/CFR/DDP

Port: Shen Zhen/Guang Zhou/Ning Bo/Shang Hai

Production Lead Time: 1-1k, 2 days;1k-10k, 7days;above 10k,negotiated.

Package:Export Standard Unified Carton Packaging.

Small quantity is usually shipped by courier.

Bulk quantity ship by air , by sea,by railway

Special service: help find low freight and freight counter-offer

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To create extra value for customers is our enterprise philosophy; buyer growing is our working chase for Wholesale Rubber surrounds, Rubber products, Cone paper used on all kinds of speakers. President of our company, with whole staff, welcomes all buyers to visit our company and inspect. Let us cooperate hand in hand to make a good future.

Our growth depends on the superior equipment, exceptional talents and continuously strengthened technology forces for Wholesale products which will supply to all over the world. Upon today, we have customers from all over the world. The mission of our company is to provide the highest quality products with best price. We are looking forward to doing business with you!


Product detail pictures:

Good quality Concave Cap - Dustproof-Protective-Rubber cap – Nandi Yanlong detail pictures

Good quality Concave Cap - Dustproof-Protective-Rubber cap – Nandi Yanlong detail pictures

Good quality Concave Cap - Dustproof-Protective-Rubber cap – Nandi Yanlong detail pictures

Good quality Concave Cap - Dustproof-Protective-Rubber cap – Nandi Yanlong detail pictures


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We are experienced manufacturer. Wining the majority of the crucial certifications of its market for Good quality Concave Cap - Dustproof-Protective-Rubber cap – Nandi Yanlong , The product will supply to all over the world, such as: Miami, Durban, Austria, With good quality, reasonable price and sincere service, we enjoy a good reputation. Products are exported to South America, Australia, Southeast Asia and so on. Warmly welcome customers at home and abroad to cooperate with us for the brilliant future.
  • High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
    5 Stars By Henry from UK - 2017.08.16 13:39
    This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
    5 Stars By Joanne from Angola - 2018.10.01 14:14
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