Why we should Metal Pipe End Cap Bevel Protector with canvas replace big size plugs

Why we need Flange Pressboard Protectors(FPTC) or Pipe Pressboard cover

why self adhesive flange disc can replace plastic flange cover

Пластикові заглушки для труб

플라스틱 플랜지 커버

プラスチックフランジカバー