| Customization: | Available |
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| After-sales Service: | 24hours |
| Warranty: | 1year |
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Audited Supplier Audited by an independent third-party inspection agency
| The advantage of gravity casting technology | ||
| Item | Gravity casting technology | Foundry casting technology |
| Product quality | The structure of the casting is compact and both of its inside and outside surfaces are smooth . The sizes of castings are concordant . The fine machining speed is fast and polishing rate is high . |
There are some dregs and sands on the surface of the castings. Its structure is loose and both of the inside and outside surfaces are rough. The sizes of castings are not concordant . The fine machining speed is slow and polishing rate is low. |
| Qualified rate | 92%~98%, high qualified rate | High rejection rate |
| Labor productivity | It needs only 7 persons . | It needs more than 14 persons . |
| Pollution situation | Casting temperature is low . Its pollution and noise are also low . |
It produces smoke . Its pollution and noise are high . |
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