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Top double covered yarn Secrets

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(この画像の場合は、芯ゴムは、天然ゴム糸で、カバード糸は、上糸も下糸もポリエステル糸の生成色です。) Covered Elastomeric Yarns – The trick ingredient behind several of the entire world’s most important traits Covered Elastomeric Yarns – The trick component guiding a number of the entire world’s most important traits 中の芯糸に天然ゴム糸やポリウレタン弾性糸などを使用すると横巻ゴムにな... https://bonov353mnp3.wikidirective.com/user

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