appearance(Unplasticized polyvinyl chloride (PVC-U) double wall corrugated pipes)
作者:百檢網 時間:2021-12-01 來源:互聯網
- 檢測分類?未定義
- 樣品名稱?Unplasticized polyvinyl chloride (PVC-U) double wall corrugated pipes
- 檢測項目?appearance
- 檢測標準?《Unplasticized polyvinyl chloride (PVC-U) double wall corrugated pipes 》QB/T 1916-2004