When the name of the Kayitou Formation was made public for the first time, the designated type section conformed the standard of the stratigraphic code.
卡以头组名称在首次公开发表时,指明标准剖面符合地层规范要求。
(Polyvinyl Chloride) PVC conforming to ASTM D-1784, Classification 12454-b, formerly designated Type I, Grade 1, is the most frequently specified of all thermoplastic piping materials.
(聚氯乙烯)PV C符合ASTM D - 1784,类别12454 - B标准,以前定义为类别i,等级1,是所有热塑塑料管道材料中应用最广泛的材料。
(Chlorinated Polyvinyl Chloride) CPVC conforming to ASTM D-1784, Classification 23447-B, formerly designated Type IV, Grade 1, is a resin created by the postchlorination of a PVC polymer.
(氯化聚氯乙烯)CPVC符合ASTM D-1784,类别23447-B标准,以前定义为IV类别,等级1, 是由PVC聚合物进行后氯化处理后产生的一种树脂。
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