日本工业标准_JIS A5712-2009 Glass fiber reinforced plastic bathtubs connected with floor(Amendment 1)_A 51052009 1 ?QUV w4x|j=OH 14 t?loj;b?H 12 H 1 wFt,nV|jj?o?F?Yb?VqwZUK?|?j*qw?&o|&A?GUYh?wp|?t?lo| JIS A 5105:1993 xY?|U?VQ?h ?F JIS A 5105 2009EP;?+?(+ 41 Trapless water toilet bowls Amendment 1 JIS A 5105:1993 ?|w?OtYb? 1.&;c?w?1.w JIS K 6747