Stainless hlau yeeb Fittings txuj heev tag nrho

Heev tas txuj
1 qhov Ministry ntawm labour [1996] 140 siab pipeline ruaj ntseg tswj thiab xyuas raws *
2 zoo lauj kaub [siab txog ntsha thiab siab piping tsim nyob rau thaum xyoo 2002] 235 tso thiab tswj cov kev cai
3 bureau zoo thiab kev tswj xyuas [1999] 143 tsab xov xwm txog strengthening qhov kev tswj saib xyuas kev nyab xeeb rau cov chaw nres tsheb cov pa roj av liquefied thiab daim ntawv ceeb toom
4 tsis zoo thiab kev tswj xyuas kev [1999] txog 59 xyoos txog qhov yuav ua raws li cov kev tshaj tawm rau cov strengthening LPG noj, xyuas ruaj ntseg thiab kev tswj cov teeb meem txog 5 tseem cia nrog cov tsab ntawv ceeb toom txog qhov Ministry ntawm labour [1996] 276 boiler chav kev siv tshuab supervisory kev cai *
6 tus Ministry ntawm labour [1997] 74 dej kub boiler xim tshuab supervisory kev cai *
7 tus Ministry ntawm labour [xyoo 1993] 356, organic kub rauv kev ruaj ntseg tswj xyuas kev cai *
8 bureau zoo thiab kev tswj xyuas [1999] 154 siab txog ntsha xim tshuab supervisory kev cai *
9 GB4962-1985 kev specification rau kev ruaj ntseg hydrogen
10 GB6222-1986 kev ruaj ntseg chaws roj uas muaj qhauj
11 GB11984-1989 tshuaj roj kev ruaj ntseg kev cai
12 GB13348-1992 kua roj av khoom kev cai nyab xeeb txog hluav taws xob static
13 SY6186-1996 kev cai rau roj thiab cov pa pipelines
14 SY5737-rau xyoo 1995 roj pipeline kev ruaj ntseg kev cai
15 cov txheej txheem rau DL/T561-95 thermal zog cog tshuaj lom neeg saib xyuas ntawm tus dej vapor
16 kev specifications rau kev kuaj penstock rau DL/T709-1999