日本工业标准_JIS K6778-2004 聚烯烃(PB)管_K 6778 2004 1 ?QUV wFx|j=OH 14 t?loj;b?H 12 H 1 wFt,nV|q (JPBPA)? (JPIF)?R?O?Fq (JSA)T?| jj?o?F?Yb?VqwZUK?|?j*qw?&o|&A?GUYh?FpK?t?lo| JIS K 6778 : 1999 xY?|wFt?VQ? swYx|?FqMFtTd?h?t| ISO 15876-2 : 2003| Plastics piping systems for hot and cold water installations Polybutylene(PB) Part 2:Pipes ?,qo;Mh wFwU|U$Q?m?V|Z&?w?Z&|;?V|xZ&?w;?JZ&tb?DQUK?qt?Ib?&A?Gt|?j*qxw?OsU$Q?m?V|Z&?w?Z&|;?V|xZ&?w;?JZ&t?tmMoxyxhsM JIS K 6778 tx|tbUK? 1 F wRP? 2 F wgMO 3 F wy?gMO 4 F wZgMO 5 F w+gMO 6 ? JIS q0 b?MFqw0z K 67782004