6, polish: 1) extruded board joints uneven application at coarse sandpaper, action is gentle circular motion of the insulation board manufacturer, not polished extruded sheet along a direction parallel to the seam. 2) promptly extruded sheet debris and floating dust after sanding with a brush to clean. 3) self-tapping screws should be tight squeeze and the extruded plastic expansion nail plate surface neat or slightly screwing some expansion nail to ensure that the tail back twist to the primary wall full anchoring. These slabs b2 insulation board honeycomb structure, the gap will not appear, this closed-cell insulation material structure can have different pressures (150-500Kpa) also has the same low thermal conductivity (only 0.028W / MK ) and unfailing good thermal insulation and compressive properties, compressive strength of up 220-500Kpa. b1 insulation board, Zibo Rui environment Building Materials Co., insulation board by Zibo Rui environment Building Materials Co., Ltd. Zibo Rui environment Building Materials Co., Ltd. (www.lcxps.com) Shandong Zibo, insulation, insulation materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Zibo Rui environment Building Materials Co., Ltd. leadership with the staff warmly welcome all inquiries negotiations to create Zibo Rui environment Building Materials Co., a better future.