GOST 12247-1980 Large seamless steel gas cylinders for operating pressure of 31 4 and 39 2 MPa (320 and 400 kgf cm sq ) Specifications《工作压力为31 4-39 2 MPa(320-400 kgf cmsq )的大型无缝钢制气.pdf

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GOST 12247-1980 Large seamless steel gas cylinders for operating pressure of 31 4 and 39 2 MPa (320 and 400 kgf cm sq ) Specifications《工作压力为31 4-39 2 MPa(320-400 kgf cmsq )的大型无缝钢制气.pdf_第1页
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GOST 12247-1980 Large seamless steel gas cylinders for operating pressure of 31 4 and 39 2 MPa (320 and 400 kgf cm sq ) Specifications《工作压力为31 4-39 2 MPa(320-400 kgf cmsq )的大型无缝钢制气.pdf_第2页
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GOST 12247-1980 Large seamless steel gas cylinders for operating pressure of 31 4 and 39 2 MPa (320 and 400 kgf cm sq ) Specifications《工作压力为31 4-39 2 MPa(320-400 kgf cmsq )的大型无缝钢制气.pdf_第3页
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GOST 12247-1980 Large seamless steel gas cylinders for operating pressure of 31 4 and 39 2 MPa (320 and 400 kgf cm sq ) Specifications《工作压力为31 4-39 2 MPa(320-400 kgf cmsq )的大型无缝钢制气.pdf_第4页
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GOST 12247-1980 Large seamless steel gas cylinders for operating pressure of 31 4 and 39 2 MPa (320 and 400 kgf cm sq ) Specifications《工作压力为31 4-39 2 MPa(320-400 kgf cmsq )的大型无缝钢制气.pdf_第5页
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