Okpokoro mpempe akwụkwọ ígwè

Na-emepụta ụdị efere ọla kọpa niile, tube ọla kọpa, ogwe ọla kọpa, eriri ọla kọpa, tube ọla kọpa, efere aluminom na coil, yana nhazi na-abụghị nke ọkọlọtọ. Ụlọ ọrụ ahụ na-enye tọn ọla kọpa nde iri n'afọ niile. Ụkpụrụ ngwaahịa bụ isi bụ: GB/T, GJB, ASTM, JIS na ihe ndị German ji eme ọla kọpa: DINH59, HPB58-3, HPB59-1, H62, H65, H68, H70, H85, H90 na-enweghị ndu na nchekwa gburugburu ebe obibi ọla kọpa, ọla manganese, ọla silicon, ọla kọpa aluminom, ọla kọpa dị ọcha T2, TU1, TU2, ọla kọpa deoxidized phosphorus TP2, H62, C36000, ọla kọpa aluminom ọla kọpa 9-4 tin ọla kọpa 5-5-6-6-3 10-1 10-2 Zinc ọcha ọla kọpa nickel ọcha ọla kọpa silicon Bronze Qsi3-1 Qsi1-3 ọla kọpa chrome ọla kọpa zirconium C18200 C18000 C18150 CuNi2Si Tin-phosphor Bronze QSn6.5-0.1QSn7-0.2C5191.