Tiang Teleskopik Aluminium Dengan Cangkuk Untuk Membuka Tingkap Bumbung

Jika terdapat kecacatan seperti keretakan, lipatan, tempaan, interlayer, parut, kemasukan sanga, dsb., pada permukaan tempaan roda, peraturan berikut hendaklah dilaksanakan:

For the surface of the forging that needs to be machined, the defect depth is confirmed after inspection, and it can be guaranteed that more than 50 percent of the machining allowance is left. It is allowed not to be removed, but the user's consent is required

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