Posted on : 6/29/2006 Category | Railway, Shipping & Aviation Products, Spares & Equipment | Subject | glass beads | Description | quality level of the products :
1. appearance: transparent sphere, clean and round, without obvious bubble or impurity.
2. specific gravity: 2.3-2.5g/cm3
3. refractive index: (20% method of dipping) 1.5-1.55.
4. roundness: product of no.1>70%, others>80%
5. component: sio2>62%.
6. waterproof capability: to neutralize 100ml water, the 0.01m hydrochloric acid demanded is not more than 10ml.
testing method: products are tested by sample testing sieves, timed testing sieve shaker, roundness.
in order to maintain high quality, we also undertake self-inspection, mutual inspection, and special, inspection.
packing:
we use waterproof plastic weave bag lined with one layer of plastic membrane for safe package and transportation, size 650x400x80mm, weight 25kg. for exporting, we use the bag weight 1000kg. | Company | LANGFANG CHANGFENG INDUSTRIAL&TRADE CO.,LTD, NO.215,WULONG ROAD,YONGQING,LANGFANG,HEIBEI,CHINA, OTHER - 065600, CHINA Phone 863166686076 Fax 863166686076 Website http://www.lfchangfeng.cn | |
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