1, look when whether compact, clearance is slip between profile and fittings smooth. Quality and design are bad, there often can be bigger noise when casement is slip, feel is not smooth.


2, the rivet of steel of sincere atmospheric pressure that looks to whether use security. Some manufacturer are reduce cost, use common steel rivet, one long glass can shake use time, fall off even.


3, see glass whether pass attestation of national 3C compulsive safety. The balcony that do not have casing is done not have among establish casing, very tall to vitreous requirement, some manufacturer may use common toughened glass to reduce cost.


4, see manufacturer after service whether be perfected. After installation is finished, the balcony that do not have casing still needs otherwise to be safeguarded regularly, the safeguard after manufacturer makes work appears particularly important.


5, see manufacturer project case. The project example that manufacturer place has made is much with little the most convincing, and the use result that listens to these users, it how should choose window of the balcony that do not have casing is very clear to how should choose window of the balcony that do not have casing

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