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SY 6443-2000 Safety regulations for fracturing and acidizing operations SY6443-2000 standard download decompression password: www.
SY 6442-2000 Specification for Classification and Assessment of Oil Drilling DerricksSY6442-2000 Standard download decompression p
SY 6433-1999 Requirements for the preparation of safety emergency plans for shallow-water petroleum operations SY6433-1999 Standar
SY 6432-1999 Shallow Sea Oil Well Control RequirementsSY6432-1999 Standard download decompression password: www.bzxz.net
SY 6431-1999 Basic safety requirements for shallow-water petroleum vesselsSY6431-1999 Standard download and decompression password
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SY 6428-1999 Safety regulations for the sinking, floating and lifting of shallow-water mobile platforms SY6428-1999 Standard downl