Polyurethane nneɛma a wɔde yɛ .

Yɛyɛ yie-a wonim no sɛ ɛyɛ polyurethane nneɛma a wɔyɛ ne wɔn a wɔde nneɛma ma wɔ China no mu baako. Yɛsrɛ sɛ, ntwentwɛn wo nan ase sɛ wobɛtɔ anaasɛ wobɛtɔn nneɛma a ɛkorɔn a ɛyɛ polyurethane wɔ bo a ɛba fam so afi yɛn adwumayɛbea hɔ. Sɛ wopɛ sɛ wofa nsɛm ka a, di yɛn ho nkɔmmɔ mprempren.

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