as the new environmentally friendly building material, has become the best choice to replace the steel or wooden formwork. It’s the trend of the reinforced concrete pour works. moisture free and nondeformable; imputrescible and rustless, esp suitable for underground and watery circumstance; release from mold easily without any mold-release agent, quicken construction schedule, shorten construction period. high construction efficiency, good quality, light weight, conveniently to assemble and disassemble; reduces labor costs due to simplified handling; Long duration of life, normally could be reused 80-100 times; Excellent heat preservation behaviior, favourable to shorten construction period; Light weight, rigid strong, high-bending modulus; Surface fenacity, impact, abrasion-resistant; Can be nailed, drilled, planed, milled, processing, such as sawing; With ultraviolet light stability, not brittle fracture, easy to clean maintenance; Welding rod can be easily used for repair; Waste scrap molding board could be 100% recycled, reusable, recyclable, environmentally friendly