This depends on that you are to like dirty dirty environmental protection product still likes petty gain beautiful but insalubrious product.
Serve as what with malic product 20 old Mr W still can say.
The data that they use for Cong Ping fruit often is to should consider environmental protection and of use safety. Take data line for, what the data line that the apple holds formerly uses is plastic it is TPE (Thermoplastic Elastomer) , TPE can be regarded is one kind plastic the mixture with balata.
It is the material with similar balata undertakes connective between the plastic grain that reads this kind of material from microcosmic level. Because this changes the agent, demand that increases adhesive to model,did not have. But still can hold the intensity with due material and property.
Just, the balata between plastic grain is qualitative very easy cut, rupture. The plastic products that brought about TPE is very difficult abiding use.
Relative to the data line at the apple, what mountain fastness product chooses is a kind of price and its petty gain is plastic -- PVC (Polyvinyl Chloride) , PVC can say the high polymer that is a model is plastic, will look from the structure:
The element of PVC is the form with chain exists cheek by jowl, many because this is durable the gender is more ambitious than inattentive TPE. But because be this,planting the high polymer of chain form is plastic, itself its hardness is about a lot of taller -- pure PVC is hard and cannot bent. If do thread capable person,need to be added inside PVC accordingly " spice " , add model to turn the material such as agent, plasticizer, age resistor. The PVC wire that added these material is OK in use process by is plastic inside the skin that the surface changes these additive the person that use, the cancer risk of the person that such use increases. When reject reclaims, combustion arises again a large number of 2 evil flower contaminative environment. Because this PVC is used besides fundamental building materials actually outside should not be be used in any civil products. The price that if insist to use the cost of PVC to want to compare actually continuously,uses TPE wire wants a lot of taller, just consumer did not go in the costing that treats cancer later.
Additional to wire the plastic part of two end, what the apple uses is to get together carbonic acid fat (PC) and what hard plastic part uses the data line of other trademark is PVC or polypropylene (PP) , even if is to use PP to also be met separate out is harmful material. But the price that considers PP from cost is PC 1/3 to the 4 prices of 1/0. Mountain fastness manufacturer can use cheaper data of course here.
Will calculate from integrated computation, the profit margin of a line of mountain fastness data of 10 money is as high as 56% and the profit margin of a 145 yuan malic data line has 12% only however, so who is right can the health of consumer be in charge of more a few? The manufacturer has done this business that do, but consumer the behavior firm from cheap is controlled hard.