Welded steel tubes for pressure purposes - technical delivery conditions - part 4 : electric welded non - alloy steel tubes with specified low temperature properties ; german version en 10217 - 4 : 2002 a1 : 2005 压力用途焊接钢管.交货技术条件.第4部分:具有低温下
The necessary protective clothing and equipment for specific jobs e . g . oxy - welding and cutting , electric welding must be worn while this work is being carried out 特殊工种需要着装不同的防护服。例如,氧气焊接与焊割、电焊工工作时,必须穿着特殊的防护服。
Welded steel tubes for pressure purposes - technical delivery conditions - part 2 : electric welded non - alloy and alloy steel tubes with specified elevated temperature properties 承压用的焊接钢管.交付技术条件.第2部分:规定了高温特性的电焊非合金和合金钢管
Non - destructive testing of steel tubes - part 8 : automatic ultrasonic testing of the weld seam of electric welded steel tubes for the detection of longitudinal imperfections ; german version en 10246 - 8 : 1999 钢管的无损试验.第8部分:电焊钢管焊缝径向缺陷探测的
Welded steel tubes for pressure purposes - technical delivery conditions - part 2 : electric welded non - alloy and alloy steel tubes with specified elevated temperature properties ; german version en 10217 - 2 : 2002 a1 : 2005 压力用途焊接钢管.交货技术条件.第2部分:具有较高温
1 . the series of mica includes muscovite , golden mica , biotite , sericite , used in the fields of electric insulation , heat insulation , paint , plastic , rubber , electric welding , toiletry , etc . . 2 云母蛭石石英砂轻质碳酸钙重钙粉长石粉石雕工艺品五彩砂电气石鹅卵石大理石。
And we have the specialized project construction troop , provided the advanced electric welding machine , the cutter , the impact drills and so on the necessary tools of the scene project construction 拥有专业工程施工队伍,配备先进的电焊机切割机冲击钻等现场工程施工中必备的工具。
Chain link fence , barbed rope , electric welded wire , etc peaceful hardware mesh mesh co . , ltd . ! it is one of the main manufacturers of wire mesh and wire cloth products in china 勾花网,轧花网,塑料平网烧烤网烧烤架,黑丝布,护拦网刺绳,窗纱玻璃纤维方眼网冲孔网钢板网等铁丝网
Promote skill , the white - collar works , income is considerable ; if be not the technology that wants strong traditional sense , the car embeds riveting electric welding best , developing heavy industry is a trend 推销技巧,白领工作,收入可观;假如非要强传统意义的技术,车嵌铆电焊最好,发展重工业是趋势。
Steel pipe coated with red and white spiral shaped plastic pipe is the patent of our company . it is also a green product . it does not need electric welding or painting in the process of engineering project 在钢管外复合红白相间螺旋状塑料硬管,是我们公司的专利产品,也是环保产品,在施工过程中不电焊不油漆。