1. cleanliness: bottom tank, roof, roof and cavity wall cover sheet clean and dry, no oil, plastic, wire and other debris.

2. fineness: molded inside and outside the surface without stripping marks and strain, without any part of any of the crack.

3. standard degree: the end of tank, roof, roof cap color and standard color film basically the same (in the bright light from the plastic shell molded case 30 ± 3cm no visible face and the visible color of the yarns.).

4. protection degree: the end of slot, cover and cover sheet has a protective film protection.

5. dimensions with degrees:

end of tanks, cover evenly with the gap, the gap is less than 1.5mm in all directions;

cover sheet and the direction with the gap less than 0.5mm.

6.impact resistance:

room temperature: the shot put with a 500g 1500mm and 1000mm respectively, from the slot cover for the end of free fall, look no obvious cracks molded case;

low temperature: the samples were placed in -30°c refrigerator to keep chilled 3 hours, and then samples removed from the refrigerator within 1 minute, shot with 500g of 500mm and 300mm respectively from the bottom slot, site for free-fall, and molded case cover without any obvious cracks.

7. heat resistance: the samples were placed in 70 ± 2 °c constant temperature box for 3 hours, the length, width and height changes of less than 1.3mm.

1. cleanliness: bottom tank, roof, roof and cavity wall cover sheet clean and dry, no oil, plastic, wire and other debris.

2. fineness: molded inside and outside the surface without stripping marks and strain, without any part of any of the crack.

3. standard degree: the end of tank, roof, roof cap color and standard color film basically the same (in the bright light from the plastic shell molded case 30 ± 3cm no visible face and the visible color of the yarns.).

4. protection degree: the end of slot, cover and cover sheet has a protective film protection.

5. dimensions with degrees:

end of tanks, cover evenly with the gap, the gap is less than 1.5mm in all directions;

cover sheet and the direction with the gap less than 0.5mm.

6.impact resistance:

room temperature: the shot put with a 500g 1500mm and 1000mm respectively, from the slot cover for the end of free fall, look no obvious cracks molded case;

low temperature: the samples were placed in -30°c refrigerator to keep chilled 3 hours, and then samples removed from the refrigerator within 1 minute, shot with 500g of 500mm and 300mm respectively from the bottom slot, site for free-fall, and molded case cover without any obvious cracks.

7. heat resistance: the samples were placed in 70 ± 2 °c constant temperature box for 3 hours, the length, width and height changes of less than 1.3mm.