JIS F7352 5K JIS bronze angle stop-check valve JIS F7351 5K JIS bronze straight stop-check valve JIS F7314 20K JIS cast steel angle stop-check valve JIS F7372 5K JIS cast iron swing check valve JIS F7373 10K JIS cast iron swing check valve JIS F7409 16K JIS bronze straight stop-check valve JIS F7410 16K JIS bronze angle stop-check valve JIS F7472 10K JIS cast steel angle stop-check valve
