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You'll want to go away a little bit thread about one/two” (1cm) long. Leaving just a little bit makes certain that you don’t unintentionally Lower the knots. Tuck the thread underneath the patch.là đơn vị chuyên cung cấp dịch vụ quan trắc môi trường lao động, hồ sơ vệ sinh môi trường lao theo nghị định 44/2016