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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JB/T 13971-2020 |
Road construction and maintenance machinery and equipment Self-propelled road widening machine {译} 道路施工与养护机械设备 自行式道路扩宽机 |
China Machinery Industry
Standards widening |
 English PDF |
| TB/T 1350-1983 |
(Railway Curve gauge widening) |
China Railway & Train
Standards widening |
English PDF |
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