Qingdao Oulu Rubber Plastic Machinery Co., Ltd manufactures PE second foam equipment. Rubber plastic solar energy heat preservation pipe equipment adopt foreign advanced technology, researches and develops new type foam pipe, generally called sponge tube. Its main parts adopt imported components and Danish burner which can auto control temperature. It widely applys to air-conditioner heat preservation pipe, insulating pipe and sheet, top grade handle, jacket of fitness equipment, etc. fields.