e) face the wind or rain erosion surface to prevent rainwater percolating through the filling material surface oxidation treatment between doors and walls aluminum Which is good, give due consideration to the sealing barrier or other waterproof coating, increasing impermeability; f ) sash junction to leave dispensing slot surface oxidation aluminum supplier, width 5-8mm, insert injection sealing material, should pay attention to remove floating dust, mortar, so that the sealing material and window frames, wall bonding firm. Also check whether the sealing material continuously, whether omissions, etc., especially if there is a transfer position angular pores exist; external wall tiles should be used for two or more sealed to avoid patchwork capillary water penetration; g) adjusting the pad ban remains in door frame, after the removal of the adhesive to timely and reliable secondary filling dense, filled with attention and the base, except to remove residue should base outside moist; h) should be lower than the indoor outdoor windowsill sill plates 20mm is appropriate, and set the sails slope, drainage flow, to avoid water penetration. Aluminum windows and facades have a certain distance, avoid direct rain erosion. i) door and window fittings materials, specifications, connection method that complies with local "aluminum alloy doors and technical regulations" requirement, timely and concrete or mortar anchor seal, to avoid leaving the sealing material moving cracks under wind loads. Uneven cooling will also affect the quality of the weld. In fact, when using graphite products when used as a feed shoe introduced, the supply side in contact with the graphite surface treatment of aluminum prices, the profile also has a black belt prone to oxidation phenomena, especially in the hot summer months. This is due to the characteristics of graphite so that the local temperature rise profile, thus accelerating the grown crystal grains of the weld surface. But the cooling capacity of the equipment enough, you can avoid this supply aluminum surface treatment, surface treatment of aluminum, aluminum is provided by Jinan Heshun Heshun Aluminium Limited. Jinan Heshun Aluminum Co., Ltd. (www.jnhsly.com) (www.jnhsly.cn) is specialized in "aluminum, aluminum, aluminum, aluminum rod, aluminum row, aluminum, aluminum rod, aluminum elbow" of the enterprise the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Zhang.