Lengwan payments , han guan , mechanical processing , metal structures pieces , forging documents processing , the system 10th , steel distribution 冷彎型鋼、焊管、機械加工、金屬結構件、鍛造件加工、裁制卷板、鋼材經銷。
Steel die forgings - tolerances on dimensions - part 1 : drop and vertical press forgings ; german version en 10243 - 1 : 1999 , corrigenda to din en 10243 - 1 : 2000 - 06 ; german version en 10243 - 1 : 1999 ac : 2005 鋼模鍛件.尺寸公差.第1部分:落錘鍛造件和垂直壓力鍛
Sand - removing of large and medium sized castings , deoxidization of forgings , heat - freated pieces , steel plates , steel pipes , sections and steel structures , surface treatment before plating 2大型、中型鑄件的清砂。鍛造件、熱處理件的去除氧化皮、鋼板、型鋼及鋼構件的除銹及表面強化。
Sand - removing and deoxdization medium sized castings rust - removing and intersification of forgings , heat - treated pieces , steel plates , steel pipes , sections and steel struccrures , surface treatment before plating 大型、中型鑄件的清砂、鍛造件、熱處理件、鋼板、鋼管、型鋼及結構鋼件的除銹強化、涂鍍、涂裝前的表面處理及石材切割。