高档次不锈钢(焊)管的制造与订购——美国Plymouth Tube公司的经验和对美国标准的系统解读
고당차불수강(한)관적제조여정구——미국Plymouth Tube공사적경험화대미국표준적계통해독
Manufacture and Purchase of Hi-grade (Welded) Stainless Steel Tubing——Production Experience of Plymouth Tube Company, US and Reading of Relevant US Standards
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