I-Shanghai Zhongze Yi Metal Materials Co., LTD.Inqubo yokukhiqiza ipayipi lensimbi engagqwali: 1. Ukulungiswa kwempahla eluhlaza: Ukukhiqizwa kwamapayipi ensimbi engagqwali kuqala ngokukhethwa kwezinto zokusetshenziswa zensimbi engagqwali ezisezingeni eliphezulu, ngokuvamile ezenziwe ngensimbi, i-chromium, i-nickel, i-ma...
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