Type Ubwoko bwa mbere bwubwenge bwubwonko bwambere bwisi, ibikoresho byubushyuhe buringaniye kuri ± 2 ℃, byemeza neza ubuvuzi bwiza;
Isi nini cyane ku isi ikonje ikonje izenguruka umurongo wa black annealing umurongo wa 1600KW, ukora Out Diameter 219-762, umubyimba wa 3-20mm, kuzigama ingufu zirenga 20%, nta mpamvu yo gukosorwa bwa kabiri nyuma yo kwishyiriraho, imikorere yiyongereyeho 20% ;
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