| |||||||
| Title | The date | Reading times | |||||
 Technical Support ‖ Classification of Plastics |
2015-05-07 | 45 | |||||
| Technical Support ‖ The development of plastics |
2015-05-07 | 36 | |||||
| Technical Support ‖ Special purpose plastics |
2015-05-07 | 40 | |||||
| Technical Support ‖ Common plastics and uses |
2015-05-07 | 33 | |||||
| Technical Support ‖ Etymology of the word plastic |
2015-05-07 | 34 | |||||
| Technical Support ‖ Age of Plastics |
2015-05-07 | 37 | |||||
 Technical Support ‖ The history of the nail |
2015-05-07 | 42 | |||||
| Technical Support ‖ Nail (fastener) |
2015-05-07 | 27 | |||||
| Technical Support ‖ Mechanical classifications |
2015-05-07 | 30 | |||||
| Technical Support ‖ Materials |
2015-05-07 | 24 | |||||
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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