01 materials 02 wall layout and structure 03 preparation before masonry 04 key points of masonry construction and acceptance the platform provides the most complete and professional guidance materials every year: 1.
Examination materials, exercises and real questions of various subjects in 2022.
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In 2022, video courses of various subjects and major online schools (universal, hi school, construction engineering, 233, Zhongye, Dali, Youlu, etc.) include intensive lecture, sprint, security class, pre exam simulation paper, security paper, the last three pages and other materials.
Video 50 / subject, one-time charge, until you pass the exam…