| |||||||
| Title | The date | Reading times | |||||
 Technical Support | Classification of Plastics |
2015-05-07 | 68 | |||||
| Technical Support | The development of plastics |
2015-05-07 | 62 | |||||
| Technical Support | Special purpose plastics |
2015-05-07 | 63 | |||||
| Technical Support | Common plastics and uses |
2015-05-07 | 48 | |||||
| Technical Support | Etymology of the word plastic |
2015-05-07 | 52 | |||||
| Technical Support | Age of Plastics |
2015-05-07 | 61 | |||||
 Technical Support | The history of the nail |
2015-05-07 | 55 | |||||
| Technical Support | Nail (fastener) |
2015-05-07 | 53 | |||||
| Technical Support | Mechanical classifications |
2015-05-07 | 53 | |||||
| Technical Support | Materials |
2015-05-07 | 39 | |||||
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add.：No.158 Jin xue Rd, Malu Industrial Park,Shanghai traffi：021-69955479/69955480 traffi： Time
ICP No.：Shanghai ICP No. 10042274