100% Original 17 Speaker Cone - 4.5″-Speaker Rubber Surround – EPDM Rubber Edge – Nandi Yanlong

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To constantly improve the management system by virtue of the rule of "sincerely, good faith and quality are the base of enterprise development", we widely absorb the essence of related products internationally, and constantly develop new products to meet the demands of customers for Speaker Diaphragm , Durable Dust Cap For Speaker , Cone , With outstanding company and top quality, and an enterprise of overseas trade featuring validity and competitiveness, which will be trustworthy and welcomed by its clientele and makes joy to its employees.

100% Original 17 Speaker Cone - 4.5″-Speaker Rubber Surround – EPDM Rubber Edge – Nandi Yanlong Detail:

90-042-7

Material	NBR	SBR	IIR	EPDM	Foaming
Size	1mm-21mm	1mm-21mm	1mm-21mm	1mm-21mm	3mm-12mm
Hardness	45°-85°	45°-85°	45°-85°	45°-85°	55°-75°
Thicken	0.15mm-10mm	0.15mm-10mm	0.15mm-10mm	0.15mm-10mm	0.15mm-10mm
Shape	Round, oval, irregular, etc., accept foreign molds, and support customized molds
Color	Black, gray, etc. according to customer requirements
Surface treament	Smooth, frosted, undercut, etc. according to customer requirements
Edge design	High-pressure strip, texture, reverse concave edge, notch, punching, etc. according to customer requirements

The quality of the rubber edge has a great impact on the frequency response of the speaker, and the hardness directly affects the frequency of the speaker. The service life of rubber ring is also very long.

EPDM rubber surround has excellent resilience and is an ideal choice for outdoor speakers, gaskets and fasteners.

EPDM is a terpolymer of ethylene, propylene and non-conjugated dienes, which began commercial production in 1963. The annual consumption of the world is 800000 tons. The main characteristic of EPDM is its superior oxidation resistance, ozone resistance and corrosion resistance. As EPDM belongs to the polyolefin (PO) family, it has excellent vulcanization properties. Among all rubbers, EPDM has the lowest specific gravity and can absorb a large amount of fillers and oil without affecting the properties. Therefore, it can produce low-cost rubber compounds. EPDM is a terpolymer of ethylene, propylene and unconjugated dienes. Dienes have a special structure, and only one of the two bonds can be copolymerized. Unsaturated double bonds are mainly used as the crossing point. The other unsaturated chain will not become the main chain of the polymer, but the side chain. The main polymer chain of EPDM is completely saturated. This property makes EPDM resistant to heat, light, oxygen, especially ozone. EPDM is non-polar in nature, resistant to polar solutions and chemicals, low water absorption and good insulation characteristics.

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Q1: Can you make OEM/ODM or custom order?
Answer 1: We welcome OEM/ODM or customized product list.

Q2: What is the packaging of your products?
Answer 2: The packaging method is based on the cartons uniformly used by the company, and special packaging will be charged separately.

Q3: Can I get samples from you for testing?
Answer 3: Customers are welcome to take samples for testing. Our company supports free samples of existing models. You only need to bear the freight.

Q4: What are the terms of payment?
Answer 4: 30% T/T deposit, 70% T/T balance payment before delivery. If there is special need, it can be negotiated.

Q5: Can I visit your factory?
Answer 5: 1. In the epidemic environment, our company provides remote online factory detection service. Please contact our business. 2. Welcome to visit the company for field inspection. Please make an appointment in advance before the investigation, so as not to delay your schedule.

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So that you can finest fulfill client's demands, all of our operations are strictly performed in line with our motto "High Excellent, Competitive Price, Fast Service" for 100% Original 17 Speaker Cone - 4.5″-Speaker Rubber Surround – EPDM Rubber Edge – Nandi Yanlong , The product will supply to all over the world, such as: Angola, Suriname, Haiti, We take measure at any expense to achieve essentially the most up-to-date equipment and approaches. The packing of nominated brand is our a further distinguishing feature. The items to assure years of trouble-free service has attracted a great deal customers. The solutions are obtainable in improved designs and richer assortment, they're created scientifically of purely raw supplies. It readily available in a variety of designs and specifications for your selection. The most recent kinds are a great deal better than the preceding one particular and they are quite popular with lots of prospects.

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