Flexible Duct Cfm - Biggest Extension Spring Factory

Flexible Duct Cfm - Biggest Extension Spring Factory

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

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1. Spring Specification

Dimension:

1. Spring Type: Extension spring.

2. Material: high carbon spring steel; music wire; stainless steel(SUS301,302,304,316,201,202);alloy steel(60Si2MnA,55CrSi,50CrV,60SiCr8A);copper wire ,iron wire ,

3. Wire Diameter: 0.1-65.0mm

4. Surface treatment: become black, Zinc/ Nickel/Silver/Golden/Tin plated ,polishing ,anti-rust oil, passivation ,powder coating, shot blasting

5. Certification: ISO9001:2000, ROHS

6.Packing :Inner plastic bags and outer cartons ,shipping with plastic pallet

7.OEM and ODM is accepted.
Can made by your drawings, sample and dimension

9. Advantage: Good hardness, resistance, durable.

10. Payment:T/T, Western Union, Paypal.

11. MOQ: 5000pcs

12. Delivery time: 7-15 days after receiving your payment.

13. Application: Widely used in automobiles, motorcycles, electrical appliances, telecommunication, craft, toys ,locks,stationery,furiture ,washing machines,vacuum cleaners,lamps and lanterns,bicycles,sports equipment ,etc

Formula:

1) OD=ID+d (OD: outside diameter; ID=inside diameter; D_m=mean diameter; d=wire diameter)

2) F=Gd⁴*f/8D_m³N_act(F= load; G=gravity; f=deflection; N_act=active number of coil)

3) F'=F/f (F'=Spring rate)

Dimension:
Spring Type	Extension spring.
Load Type	Compression
Material	high carbon spring steel; music wire; stainless steel(SUS301,302,304,316,201,202); alloy steel(60Si2MnA,55CrSi,50CrV,60SiCr8A); copper wire ,iron wire
Wire Diameter	0.1-65.0mm
Surface treatment	become black Zinc/ Nickel/Silver/Golden/Tin plated polishing anti-rust oil passivation powder coating shot blasting
Type of Loops	Crossover Loops Double Twisted Loops Extended Loops Full Loops On the Side Full Loops Over Center Machine Full Loops Machine Half Loops Double Full Loops . Etc
form of ends	open / closed / ground or not
Certification:	ISO9001:2000, ROHS
Packing	Inner plastic bags and outer cartons ,shipping with plastic pallet
OEM&ODM	OEM and ODM is accepted. Can made by your drawings, sample and dimension
Advantage	Good hardness, resistance, durable，high fatigue strength
Payment:	T/T, Western Union, Paypal.
MOQ	5000pcs or according to your requirement
Delivery time:	7-15 days after receiving your payment.
Application	Widely used in automobiles, motorcycles, electrical appliances, telecommunication, craft, toys ,locks,stationery,furiture ,washing machines,vacuum cleaners,lamps and lanterns,bicycles,sports equipment ,etc
Formula:
1) OD=ID+d (OD: outside diameter; ID=inside diameter; D_m=mean diameter; d=wire diameter)
2) F=Gd⁴*f/8D_m³N_act(F= load; G=gravity; f=deflection; N_act=active number of coil)
3) F'=F/f (F'=Spring rate)

2. Packing

Inner plastic bags and outer cartons, shipping with plastic pallet

Q: Flexible pipe trench backfill inspection batch quality acceptance record how to fill: Go to the site to run you may have a harvest; The The The The

Q: Can the kitchen sewage pipe pass through the walls of the stove wall?: The system can avoid the hot bridge in winter, greatly reducing the indoor heat loss through the external walls; summer can greatly reduce the external radiation from the sun to the indoor heat conduction, and thus the heating, air conditioning energy consumption decline

Q: Safety evaluation: gas pipeline and discharge pipe should not be set between the valve, what is the specification of which provisions?: 028W / MK) and enduring excellent insulation and compression performance, compressive strength up to 220-500Kpa

Q: How is the flexible casing of the fire pond connected to the tube?: EPS expansion polystyrene board: is a volatile liquid blowing agent containing polystyrene (eps) beads, preheated by heating after the mold in the mold, with fine closed-cell structure characteristics

Q: Why should the flexible hose be set in the mechanical ventilation system?: Bowl buckle price is high! There are many buckle-style markets, so rent up cheap!

Q: CAD type too much (including civil engineering, interior spring design, motor, machinery manufacturing and many other), a beginner how to choose?: Extrusion plate (XPS) is a polystyrene resin or its copolymer as the main component, add a small amount of additives, made by heating and extrusion with a closed-cell structure of the rigid foam

Q: How is the flexible tube of FRP composite pipe defined: Filling system is also used to close the molecular structure, you can put an end to the condensation of water vapor

Q: Two hundred galvanized pipe should be under the large flexible tube: Expanded polystyrene board is a common white foam board; this foam board is formed by foaming. The extruded polystyrene board is a color foam board (common colors: gray, blue, yellow, green, etc.); this type of foam is lack of dumplings dumplings. In other words, in addition to color, the production process is the difference between the focus.

Q: To ask why the use of clamps connected to the spray pipe after the flush again after the water there will be a lot of hook link position leakage phenomenon? Thank you! The The: It should be JGJ130-2001 Ministry of Construction 2001-02-9 approved 2001-06-01 implementation