Taicang Zhixiang Ship Fittings Co., Ltd Help Chad Small Customer Growth Plan, We are a professional U type double tube folder from China manufacturers/suppliers, for U type double tube folder OEM&ODM/wholesale prices. Asbestos fibers are released into the air during activities that disturb asbestos-containing materials. The asbestos fibers can then be inhaled without knowing1 – Plugging Material Indentified (to Head Teacher). 2 – Packing Material present/No Action (to Duty Holder). 3 – Asbestos Present/Resulting Work (to Duty Holder).