| 1. | Specification for engineers ' cold chisels and allied tools
工程用冷凿及相关工具规范
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| 2. | Pointed hexagonal cold chisel with rubber holder
六角八角尖刃胶套石工凿
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| 3. | Engineers ' cold chisels and allied tools ; technical specifications
工程师用泠錾子.技术规范
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| 4. | Engineer cold chisels and cross - cut chisels
工程用冷凿和横切凿
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| 5. | Pointed hexagonal cold chisel
六角八角尖刃石工凿
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| 6. | Blacksmith ' chisels cold chisels
锻工凿冷凿
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