Ndị na-emepụta plastik rotational na-echekwa nsogbu ụfọdụ ihu na mmepe nke taa, kedu ihe ha bụ kpọmkwem?Ngwaahịa ndị bụ isi nke ụlọ ọrụ rotomolding nke China na-elekwasị anya na ebe ntụrụndụ, pipeline mgbochi corrosion, akụrụngwa mgbochi corrosion, tankị nchekwa ...
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