Site na Mee 26 ruo 28, 2021, ụlọ ọrụ anyị gara 19th China International Foundry Expo na Shanghai.Na ngosi ahụ, ọtụtụ ndị ahịa bịara n'ụlọ ntu anyị ka ha ghọta usoro nkedo nkenke na njirimara ngwaahịa.Silica sol usoro, anyị nwere ọtụtụ igwe anaghị agba nchara nri igwe, pum ...
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