Mishima Tool Co., Ltd. New Employee's Casual Diary
Nice to meet you. I thought it would be good to keep a diary of the questions that a newcomer, who has just joined the company, has. I would be grateful if you could accompany me on this journey. Now, I must admit that after joining the company, I didn't quite understand what everyone meant by "white" and "black." I just accepted that white is white and black is black as I was told. However, one day, I decided to investigate why we say "white" and "black," and this diary is the result of that inquiry. The fittings used to connect pipes are of various types depending on their purpose, specifications, and materials. The term "fitting" (tsugite) is a general term for items that connect pipes, tubes, and hoses. Therefore, not only elbows and sockets but also flanges and gaskets can all be considered fittings in a broad sense. ↓ Please check the basic information below for more details ↓
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basic information
Among them, there are differences in materials called white fittings and black fittings, but as a new employee, my mind was filled with ???. Why is it called white? Why is it called black? After seeing the actual items, I somewhat understood the black one... but the white one... Even though it doesn't look white when I see the actual item, it has a glossy finish... so it completely didn't match my personal image, and I couldn't grasp it, so I decided to look it up. - Material of black fittings: ductile cast iron → As the name suggests, it has a black appearance. - Material of white fittings: general structural rolled steel (SS material) → To prevent rust and corrosion, it is coated with molten zinc on the surface. When unused, it has a glossy surface, but over time it becomes whitish, which is why it is called white fittings. I see!! Of course, the materials used are different, but the unused ones have a glossy finish, and over time they turn white due to aging. That's why they are called white fittings! I was able to learn the origin of the name. I have just barely started, but I want to gradually understand it in my own way. Thank you very much.
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Company information
Mishima Tool Co., Ltd. was founded in 1951 and has been responding to the diverse needs of our customers with the belief of "turning customers' imaginations into reality," ranging from plant equipment to piping materials and manufactured products. Currently, thanks to the long-established trust and achievements, our sales channels have expanded, and we have grown into a trading company that is called upon in factories and plants in the chemical, pharmaceutical, food, resin, rubber, and semiconductor industries, both within and outside the prefecture. By having our own delivery department, we provide rapid response capabilities and deliver sustainable proposals to address issues such as cause investigation, improvement, and cost-cutting in the sales department, striving to be a reliable business partner for everyone moving forward.
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