1、 Identify whether the factory name, address and trademark are true

如今的石塑電梯門(mén)套市場(chǎng)上，有的生產(chǎn)廠(chǎng)家，有的則是倒貨的小公司，因此只有自己有工廠(chǎng)，有資質(zhì)的廠(chǎng)家才是正規的，生產(chǎn)的石塑電梯門(mén)套產(chǎn)品質(zhì)量才有保障。

In today's stone plastic elevator door pocket market, some manufacturers and some small companies pour goods. Therefore, only qualified manufacturers with their own factories are regular, and the quality of stone plastic elevator door pocket products can be guaranteed.

二、表面光滑程度。

2、 Surface smoothness.

石塑電梯門(mén)套表面應平整干凈、無(wú)毛刺溝痕或者劃痕。無(wú)透膠現象，板面無(wú)局部發(fā)黃、發(fā)黑等情況的出現。

The surface of stone plastic elevator door pocket shall be flat and clean without burr, groove mark or scratch. There is no glue penetration, and there is no local yellowing or blackening on the board surface.

三、分辨膜紙質(zhì)量。

3、 Distinguish the quality of film paper.

一般情況下正規廠(chǎng)家采用的石塑電梯門(mén)套膜紙都是帶有UV漆的，紋理圖案有規則，防劃耐磨，耐腐蝕，而質(zhì)量差，不達標的石塑電梯門(mén)套，表面紋理圖案會(huì )無(wú)規則，變異性比較大。

In general, the stone plastic elevator door cover film paper adopted by regular manufacturers is with UV paint. The texture pattern is regular, scratch resistant, wear-resistant and corrosion-resistant. For the stone plastic elevator door cover with poor quality and environmental protection, the surface texture pattern will be irregular and have great variability.

四、無(wú)起泡、裂縫現象。

4、 No bubbles and cracks.

在選擇石塑電梯門(mén)套時(shí)仔細觀(guān)察，在膜紙與基材之間的附著(zhù)度、基材內部各層之間不能有嚴重的起泡、裂紋的情況。

When selecting the stone plastic elevator door pocket, carefully observe the adhesion between the film paper and the substrate, and there shall be no serious blistering and crack between the layers inside the substrate.

五、無(wú)刺激性氣味。

5、 No pungent smell.

石塑電梯門(mén)套在選購時(shí)，可從氣味來(lái)判斷，如果沒(méi)有明顯的刺激性氣味，一般都是符合標準的。

When purchasing stone plastic elevator door pocket, it can be judged from the smell. If there is no obvious pungent smell, it generally meets the environmental protection standard.

六、注意原材料比例

6、 Pay attention to the proportion of raw materials

石塑電梯門(mén)套原材料比例是質(zhì)量的根本保障，因此原材料也決定了石塑電梯門(mén)套的指標，這個(gè)可以根據廠(chǎng)家講解的鈣粉、pvc樹(shù)脂粉、化工小料的用量來(lái)判斷。

The proportion of raw materials of stone plastic elevator door pocket is the fundamental guarantee of quality, so the raw materials also determine the environmental protection index of stone plastic elevator door pocket. This can be judged according to the amount of calcium powder, PVC resin powder and chemical small materials explained by the manufacturer.