On February 11, 1945, the predecessor, Hatsuji Murai, opened an asphalt chemical company and an asphalt roofing sales company, opened the Nippon Oil Tajima Gas Station in 1966, and Murai Co., Ltd. in 1975. It was established as an industrial plant. It has been 31 years since I took over from my predecessor, and I will provide safety, security and reliability. We will contribute to society through further proposal capabilities and reliable waterproof materials. We would like to express our sincere gratitude for your continued support and encouragement in the future . Emperor Tenji is the "ancestor of oil" for the oil and waterproof industry, and the "Burning Water Festival" is an important event to pray for the prosperity of the industry by praying for the ancestor of oil as an industry person. By the way, the key to this extremely fascinating fact is Tomoto Kobori's "Fuel Soil and Water Donation Map". In the olden days, natural bitumen (asphalt) was used as an adhesive, preservative, and waterproofing material. As you may know, heavy oil remains when light volatile substances volatilize from petroleum. This will be asphalt. Current waterproof materials are asphalt materials, rubber asphalt materials, synthetic rubber sheets, vinyl chloride sheets, urethane rubber coating materials, FRP waterproof coating materials, sealing materials, etc., most of which are polymer compounds mainly composed of carbon and hydrogen. It is made of rubber and is made from naphtha (crude gasoline) produced from crude petroleum oil. May 8, 2016 It's May ☆ March 25, 2016 The tulips on the roof have bloomed ♪ March 17, 2016 It's a vegetable harvest ♪ March 3, 2016 Today is the Doll's Festival on March 3rd ♪ February 3, 2016 Today is Setsubun ☆ ★ ☆ >> Click here for a list 5-8-28 Tajima, Ikuno-ku, Osaka 544-0011 TEL: 06-6757-1725 FAX: 06-6758-4097 View Larger Map