钢衬塑管道标准翻译1-7？ 4.2.3 general—all pipe and fitting end connections shall be manufactured to provide a minimum 1/8 in. radius or chamfer in the transition from pipe wall to flange or lap face. this radius or chamfer is required to reduce stress concentration in the plastic liner as it’s flared or molded over the flange face or stub end. a perforated metal collar which seats over the flange chamfer may be used to provide this required radius. 红色部分如何翻译？ 查看更多
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