The so-called puzzle toys also called educational toys, whether they are children or adults, as the name implies, are toys that allow us to develop intelligence and wisdom in the process of playing.
Strictly speaking, puzzle toys should be divided into children's educational toys and adult educational toys. People often buy educational toys withplastic manufacturers
Product Item: Electric Ball Valve. Material: ASTM A216 WCB. Size: 4 Inch, DN100. Pressure: Class 150 LB, PN20. Design Standard: API 6D. For ...
Product Item: Ball Valve. Design Standard: API 6D. Body Material: ASTM A182 F316. Nominal Diameter: 4 Inch, DN100. Pressure: Class 150 LB, PN20. Working temperature: -29℃ to +120℃. Face to Face: ASME B16.10. Test and Inspection: API 598.For ...
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