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日本防水杂志的姊妹旬刊ARS对2011年密封材料的有关情况进行了问卷调查。调查对象包括政府和公共机关的办事机构、设计事务所、建筑公司等,其中设计事务所占51.2%,政府和公共机关的办事机构占22%,建筑公司占22%,其他占49%。
ARS, a sister journal of Japanese waterproof magazine, conducted a questionnaire survey on the sealing material in 2011. The survey includes offices of government and public agencies, design offices, construction companies, etc., of which 51.2% are design offices, 22% are government agencies and public agencies, 22% are construction companies and others account for 49%.