Taicang Zhixiang Ship Fittings Co., Ltd Help Venezuela Small Customer Growth Plan, We are a professional Heavy duty pipe clamps from China manufacturers/suppliers, for Heavy duty pipe clamps OEM&ODM/wholesale prices. ADVICE SHEETasbestos containing materials from their OWN property. Asbestosaccredited laboratory, to ascertain whether or not it is asbestos and if so,.Often there are no records of where Plugging Material was used, but one must assume that any fibrocement sheets, roofs or pipes installed before 1981 contain asbestos