Plasterer trade certification is compulsory in Quebec and available, but voluntary, in Ontario, Saskatchewan and British Columbia.
在魁北克省,泥水匠行业认证是强制性的,但在安大略省,萨斯喀彻温省和不列颠哥伦比亚省是自愿的。
Plasterer trade certification is compulsory in Quebec and available, but voluntary, in Ontario, Saskatchewan and British Columbia.
在魁北克省,泥水匠行业认证是强制性的,但在安大略省,萨斯喀彻温省和不列颠哥伦比亚省是自愿的。
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