2014 version of the zipper product standards, by the National Standardization Management Committee in accordance with the law for the record (industry standards bulletin 2014 No. ninth). Formal implementation in November 1, 2014.
From history up, the zipper product standards in China have done five major revisions, respectively in 1985, 1989, 1995, 2001 and 2014, the five modifications have distinct characteristics of the times, clearly reflect the zipper industry in China, every progress and de
standard (4)
One of the index test pull head lock function on the chain belt is self-locking pull head strength index which is a minimum.
Asked to pull the head is installed on the chain belt, exerting certain pulling force on the chain belt, pull head remain locked in a chain, no slippage. A numerical force applied on the chain belt is standard. Pull head self-locking force is the pull heads in clothing should have an important function, in order to improve the zipper using the reliability, in the new standa
2014 version of the zipper product standards, by the National Standardization Management Committee in accordance with the law for the record (industry standards bulletin 2014 No. ninth). Formal implementation in November 1, 2014.
From history up, the zipper product standards in China have done five major revisions, respectively in 1985, 1989, 1995, 2001 and 2014, the five modifications have distinct characteristics of the times, clearly reflect the zipper industry in China, every progress and de
One of the index test pull head lock function on the chain belt is self-locking pull head strength index which is a minimum.
Asked to pull the head is installed on the chain belt, exerting certain pulling force on the chain belt, pull head remain locked in a chain, no slippage. A numerical force applied on the chain belt is standard. Pull head self-locking force is the pull heads in clothing should have an important function, in order to improve the zipper using the reliability, in the new standa
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