permeability of soil loam sandy soil clayey soil comparison scientific experimental materials second volume of grade 4 for primary school students 土壤的渗透性壤土沙质土黏质土对比科学实验材料小学生四年级下册

1 piece

Specifications

unit price starts at 2 sets 2套起拍单价	CN¥ 5.0
starting unit price for 200 sets 200套起拍单价	CN¥ 4.8
unit price starts at 500 sets 500套起拍单价	CN¥ 4.6

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material: others

brand: none

electric or not: no

multi-function or not: no

can diy: yes

packing method: ziplock bag

item no.: t-w75

specifications: 65 * 55mm

foreign trade or not: no

place of import: no

ability training: hands-on brain

is there an animation image: no

patent and copyright application time: no

whether there is shopping guide video: no

whether it is exclusively for foreign trade: no

3c configuration category: other toys under 14 years old

color: 2 sets starting price, 200 sets starting price, 500 sets

whether cross-border export is exclusively available: no

applicable age: teenager (7-14 years old)

ip name: bone king

Update time：20260910162613