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SNI 13-6555 1-2001 Curriculum of training for oil and natural gas special technicians on well maintenance - Part 1 Well maintenance floorman《石油和天然气专业技师有关钻井维修的培训课程 第1部分 钻井维修钻台员》.pdf 7

SNI 13-6555 1-2001 Curriculum of training for oil and natural gas special technicians on well maintenance - Part 1 Well maintenance floorman《石油和天然气专业技师有关钻井维修的培训课程 第1部分 钻井维修钻台员》.pdfSNI 13-6555 1-2001 Curriculum of training for oil and natural gas special technicians on well maintenance - Part 1 Well maintenance floorman《石油和天然气专业技师有关钻井维修的培训课程 第1部分 钻井维修钻台员》.pdf

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SNI 13-6554-2001 Professional competency of oil and natural gas special technician on well maintenance《修理维护 石油天然气特别技术专业资格》.pdf 19

SNI 13-6554-2001 Professional competency of oil and natural gas special technician on well maintenance《修理维护 石油天然气特别技术专业资格》.pdfSNI 13-6554-2001 Professional competency of oil and natural gas special technician on well maintenance《修理维护 石油天然气特别技术专业资格》.pdf

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SNI 13-6553 2-2001 Curriculum of training for oil and natural gas special technicians on drilling - Part 2 Floorman《石油和天然气专业技师有关钻探的培训课程 第2部分 钻台员》.pdf 11

SNI 13-6553 2-2001 Curriculum of training for oil and natural gas special technicians on drilling - Part 2 Floorman《石油和天然气专业技师有关钻探的培训课程 第2部分 钻台员》.pdfSNI 13-6553 2-2001 Curriculum of training for oil and natural gas special technicians on drilling - Part 2 Floorman《石油和天然气专业技师有关钻探的培训课程 第2部分 钻台员》.pdf

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SNI 13-6553 1-2001 Curriculum of training for oil and natural gas special technicians on drilling - Part 1 Drillers《石油和天然气专业技师有关钻探的培训课程 第1部分 钻探员》.pdf 12

SNI 13-6553 1-2001 Curriculum of training for oil and natural gas special technicians on drilling - Part 1 Drillers《石油和天然气专业技师有关钻探的培训课程 第1部分 钻探员》.pdfSNI 13-6553 1-2001 Curriculum of training for oil and natural gas special technicians on drilling - Part 1 Drillers《石油和天然气专业技师有关钻探的培训课程 第1部分 钻探员》.pdf

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SNI 12-0452-1996 Stick for kasti《圆场棒球棍》.pdf 12

SNI 12-0452-1996 Stick for kasti《圆场棒球棍》.pdfSNI 12-0452-1996 Stick for kasti《圆场棒球棍》.pdf

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SNI 12-0451-1989 Drawing boards《绘图板》.pdf 11

SNI 12-0451-1989 Drawing boards《绘图板》.pdfSNI 12-0451-1989 Drawing boards《绘图板》.pdf

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SNI 12-0401-1989 Discus《底盘》.pdf 9

SNI 12-0401-1989 Discus《底盘》.pdfSNI 12-0401-1989 Discus《底盘》.pdf

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SNI 12-0400-1989 Javelin《标枪》.pdf 12

SNI 12-0400-1989 Javelin《标枪》.pdfSNI 12-0400-1989 Javelin《标枪》.pdf

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SNI 12-0392-1989 Terms and definition for parts and method of manufacturing of shoes《鞋子制作方法的术语与定义》.pdf 16

SNI 12-0392-1989 Terms and definition for parts and method of manufacturing of shoes《鞋子制作方法的术语与定义》.pdfSNI 12-0392-1989 Terms and definition for parts and method of manufacturing of shoes《鞋子制作方法的术语与定义》.pdf

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SNI 08-4039-1996 Silk batik《真丝蜡染》.pdf 7

SNI 08-4039-1996 Silk batik《真丝蜡染》.pdfSNI 08-4039-1996 Silk batik《真丝蜡染》.pdf

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