gbasara anyị

Ụlọ ọrụ ahụ bụ JIANGSU TSINGSHAN STEEL CO., LTD.bụ a na-eduga onwe ígwè ngwaahịa emeputa.The ụlọ ọrụ agafeela ISO9001 àgwà management usoro asambodo na CE certification.Our ngwaahịa gụnyere igwe anaghị agba nchara ọkpọkọ, carbon ígwè ọkpọkọ, carbon ígwè efere, carbon ígwè eriri igwe, galvanized efere, galvanized tube, agba ntekwasa efere, efere alloy, efere ihe nrụgide, efere na-eguzogide iyi, wdg, dị ka ọkọlọtọ American ASTM, ọkọlọtọ JIS Japanese, ọkọlọtọ German DIN, ọkọlọtọ British BS na ụkpụrụ ndị ọzọ.