Problems that should be paid attention to in the design and construction of polyurethane thermal insulation directly buried heating pipe: OK. The size and structure of the pipe for laying the heat-tracing cable is exactly the same as that of the ordinary heat preservation pipe. The outer wall of the special heat-tracing cable scarf steel pipe is laid in parallel with it, and the point heat is used to heat the medium through the steel pipe. At the moment of just electrification, the cable heating power *, with the increase of temperature, the resistance of PTC memory material in the cable increases gradually, so the working current and electrothermal power also gradually decrease, until the heat loss of the heating power compensation system, so that the system temperature is in a stable state. When the ambient temperature decreases, the cable power increases automatically and the loss is compensated automatically, so that the system can be balanced at the new temperature. This compensation heating method is efficient and economical.
In 2009, the affiliated Hospital of Sun Yat-sen University in Guangzhou welcomed a special patient who covered his head with a red towel, but frightened the doctor when he lifted his headscarf.
It takes 18 months for Herm 猫 s to produce a silk scarf, and it takes up to 4.5 years for customers to order a Herm 猫 s bag. The cocoon of only one kind of butterfly is selected by Herm 猫 s to be the first to be selected by Herm 猫 s. Do you know all this? As a world-class luxury brand, Herm 猫 s has always been a fashion clown and a trend pursued by people. Graceful and supple scarves, luxurious and generous platinum packing ring design capecode watch, artistic existence of porcelain furniture. Today, the boutique of Herm 猫 s is scattered in hundreds of specialty stores around the world, and it is said to the world that the legend of Herm 猫 s is a century old.
The inner frame chose a caramel-colored knitting as the bottom, and a silk scarf was used to embellish it to create a sense of hierarchy. The color of the bottom is the same as that of the bag, and the degree of harmony is quite good. The denim trousers paired with the lower body decorate the leg lines too well.
The mature dark blue makes this down jacket in a neutral zone. Can be sweet, can be cool, it all depends on what single product to cooperate with. So, elegant black high collar, elegant gray wide-legged trousers, exquisite high heels, gorgeous scarf, lovely bag.
